National Library of Energy BETA

Sample records for mm mm mm

  1. Coupling MM5 with ISOLSM:

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Yun (Helen) He 1 Coupling MM5 with ISOLSM: Development, Testing, and Application W.J. Riley, H.S. Cooley, Y. He*, M.S. Torn Lawrence Berkeley National Laboratory June 2003 Yun (Helen) He 2 Outline ! Introduction ! Model Integration ! Model Configuration ! Model Testing ! Simulation and Impacts of Winter Wheat Harvest ! Conclusions ! Observations and Future Work June 2003 Yun (Helen) He 3 Introduction ! CO 2 fluxes and other trace-gas exchanges are tightly coupled to the surface water and energy

  2. ARM - Campaign Instrument - 5mm-mwr

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    mm-mwr Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : 5mm Scanning Radiometer (5MM-MWR) Instrument Categories Atmospheric Profiling Campaigns Millimeter-wave Radiometric Arctic Winter Measurements Experiment [ Download Data ] North Slope Alaska, 1999.02.27 - 1999.03.30 Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for the

  3. CCM3 to MM5 Data Conversion

    Energy Science and Technology Software Center (OSTI)

    2007-03-02

    The accompanying script (which uses the NCAR Command Language) ready output from the Community Climate Model Code, version 3 (CCM3) and converts it to input format for the Mesoscale Model, version 5 (MM5) code. The script utilizes a Fortran binary write routine.

  4. Summary of Decisions - MM DD, YYYY - MM DD, YYYY | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    MM DD, YYYY - MM DD, YYYY Summary of Decisions - MM DD, YYYY - MM DD, YYYY April 1, 2016 - 9:46am Addthis Personnel Security (10 CFR Part 710) On March 30, 2016, an OHA Administrative Judge issued a decision in which he determined that an individual's DOE access authorization should not be restored. The LSO had alleged that individual's history of three alcohol-related arrests and an opinion by a DOE psychiatrist that he suffered from alcohol abuse, a condition with caused or may cause a

  5. Coupling MM5 with LSM1: Development, Testing, and Application - MM5_workshop

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MM5 with ISOLSM: Development, Testing, and Applications W.J. Riley 1 , H.S. Cooley 1,2 , Y. He* 1 , M.S. Torn 1 1 Lawrence Berkeley National Laboratory, Berkeley, CA 2 Energy and Resources Group, U.C. Berkeley, CA 1. INTRODUCTION Surface water and energy fluxes are tightly coupled with CO 2 exchanges between the ecosystem and atmosphere. Other surface-to- atmosphere trace-gas exchanges of interest in climate change research (e.g., N 2 O, CH 4 , C 18 OO, and H 2 18 O) are also strongly impacted

  6. 40 MM Grenade Launcher Qualification Requirements at Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    launcher, which utilizes high explosive ammunition to defeat adversary personnel and equipment. A number of Department sites have procured these weapons. PDF icon 40 MM...

  7. Replacing 16 mm film cameras with high definition digital cameras

    SciTech Connect (OSTI)

    Balch, K.S.

    1995-12-31

    For many years 16 mm film cameras have been used in severe environments. These film cameras are used on Hy-G automotive sleds, airborne gun cameras, range tracking and other hazardous environments. The companies and government agencies using these cameras are in need of replacing them with a more cost effective solution. Film-based cameras still produce the best resolving capability, however, film development time, chemical disposal, recurring media cost, and faster digital analysis are factors influencing the desire for a 16 mm film camera replacement. This paper will describe a new camera from Kodak that has been designed to replace 16 mm high speed film cameras.

  8. 40 MM Grenade Launcher Qualification Requirements at Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sites, IG-0806 | Department of Energy 40 MM Grenade Launcher Qualification Requirements at Department of Energy Sites, IG-0806 40 MM Grenade Launcher Qualification Requirements at Department of Energy Sites, IG-0806 The Department of Energy and its National Nuclear Security Administration (NNSA), operate some of the most sensitive Federal facilities in the United States. Because of the mission requirements, safeguards and security is a top priority at these sites. As part of its security

  9. LIGA-fabricated compact mm-wave linear accelerator cavities.

    SciTech Connect (OSTI)

    Song, J.J.; Bajikar, S.S.; DeCarlo, F.; Kang, Y.W.; Kustom, R.L.; Mancini, D.C.; Nassiri, A.; Lai, B.; Feinerman, A.D.; White, V.

    1998-03-23

    Millimeter-wave rf cavities for use in linear accelerators, free-electron lasers, and mm-wave undulatory are under development at Argonne National Laboratory. Typical cavity dimensions are in the 1000 mm range, and the overall length of the accelerator structure, which consists of 30-100 cavities, is about 50-100 mm. An accuracy of 0.2% in the cavity dimensions is necessary in order to achieve a high Q-factor of the cavity. To achieve this these structures are being fabricated using deep X-ray lithography, electroforming, and assembly (LIGA). The first prototype cavity structures are designed for 108 GHz and 2p/3-mode operation. Input and output couplers are integrated with the cavity structures. The cavities are fabricated on copper substrates by electroforming copper into 1-mm-thick PMMA resists patterned by deep x-ray lithography and polishing the copper down to the desired thickness. These are fabricated separately and subsequently assembled with precision spacing and alignment using microspheres, optical fibers, or microfabricated spacers/alignment pieces. Details of the fabrication process, alignment, and assembly work are presented in here.

  10. A 300-nm compact mm-wave linac FEL design

    SciTech Connect (OSTI)

    Nassiri, A.; Kustom, R.L.; Kang, Y.W.

    1995-12-31

    Microfabrication technology offers an alternative method for fabricating precision, miniature-size components suitable for use in accelerator physics and commercial applications. The original R&D work at Argonne, in collaboration with the University of Illinois at Chicago, has produced encouraging results in the area of rf accelerating structure design, optical and x-ray masks production, deep x-ray lithography (LIGA exposures), and precision structural alignments. In this paper we will present a design study for a compact single pass mm-linac FEL to produce short wavelength radiation. This system will consists of a photocathode rf gun operated at 30 GHz, a 50-MeV superconducting constant gradient structure operated at 60 GHz, and a microundulator with 1-mm period. Initial experimental results on a scale model rf gun and microundulator will be presented.

  11. Metrology issues for processing of 300 mm wafers

    SciTech Connect (OSTI)

    Watanabe, Kenji; Koike, Atsuyoshi

    1998-11-24

    Construction of IC lines using 300 mm wafers will begin in 1998-99 for pilot lines, with construction of mass production lines in 2000 or later. These lines will most likely be introduced with design rules in the range from 250 to 180 nm. Difficult challenges for these feature sizes include critical dimensions, registration, thin film measurement, and defect inspection. At the same time, metrology is expected to play a major role in controlling costs, increasing manufacturing flexibility, and decreasing cycle time in addition to assisting in the reduced emission of global warming gases.

  12. SSC 50 mm dipole magnet cryostat thermal measurement results

    SciTech Connect (OSTI)

    Boroski, W.N.; Nicol, T.H.; Ruschman, M.K.; Schoo, C.J.

    1993-05-01

    A prototype Superconducting Super Collider (SSC) 50 mm dipole magnet cryostat, DCA323, was instrumented at Fermilab and delivered to the SSC Laboratory for installation into the accelerator systems string test facility. In series with other magnets, the instrumented cryostat will be used to quantify and verify cryostat thermal performance with respect to design requirements. Prior to leaving Fermilab, DCA323 was subjected to magnetic testing at the Magnet Test Facility (MTF). This presented an opportunity to obtain preliminary thermal performance data under simulated operating conditions. It should be noted that measurements of overall cryostat thermal performance were not possible during the MTF measurements as the magnet test stands are designed for magnetic rather than thermal testing. They are not designed to limit heat inleak to the ends of the cryostat, which has been shown to have a significant effect on overall measured thermal performance. Nonetheless, these measurements do offer insight into the performance of several of the cryostat components and sub-systems.

  13. Monte Carlo evaluation of CTDI{sub {infinity}} in infinitely long cylinders of water, polyethylene and PMMA with diameters from 10 mm to 500 mm

    SciTech Connect (OSTI)

    Zhou Hong; Boone, John M.

    2008-06-15

    Monte Carlo simulations were used to evaluate the radiation dose to infinitely long cylinders of water, polyethylene, and poly(methylmethacrylate) (PMMA) from 10 to 500 mm in diameter. Radiation doses were computed by simulating a 10 mm divergent primary beam striking the cylinder at z=0, and the scattered radiation in the -z and +z directions was integrated out to infinity. Doses were assessed using the total energy deposited divided by the mass of the 10-mm-thick volume of material in the primary beam. This approach is consistent with the notion of the computed tomography dose index (CTDI) integrated over infinite z, which is equivalent to the dose near the center of an infinitely long CT scan. Monoenergetic x-ray beams were studied from 5 to 140 keV, allowing polyenergetic x-ray spectra to be evaluated using a weighted average. The radiation dose for a 10-mm-thick CT slice was assessed at the center, edge, and over the entire diameter of the phantom. The geometry of a commercial CT scanner was simulated, and the computed results were in good agreement with measured doses. The absorbed dose in water for 120 kVp x-ray spectrum with no bow tie filter for a 50 mm cylinder diameter was about 1.2 mGy per mGy air kerma at isocenter for both the peripheral and center regions, and dropped to 0.84 mGy/mGy for a 500-mm-diam water phantom at the periphery, where the corresponding value for the center location was 0.19 mGy/mGy. The influence of phantom composition was studied. For a diameter of 100 mm, the dose coefficients were 1.23 for water, 1.02 for PMMA, and 0.94 for polyethylene (at 120 kVp). For larger diameter phantoms, the order changed--for a 400 mm phantom, the dose coefficient of polyethylene (0.25) was greater than water (0.21) and PMMA (0.16). The influence of the head and body bow tie filters was also studied. For the peripheral location, the dose coefficients when no bow tie filter was used were high (e.g., for a water phantom at 120 kVp at a diameter of 300

  14. SiO2 Fracture: Chemomechanics with a Machine Learning Hybrid QM/MM Scheme |

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Argonne Leadership Computing Facility SiO2 Fracture: Chemomechanics with a Machine Learning Hybrid QM/MM Scheme SiO2 Fracture: Chemomechanics with a Machine Learning Hybrid QM/MM Scheme. Close-up of a crack tip in a multiscale quantum mechanical/molecular mechanical (QM/MM) simulation of "stress corrosion" cracking in amorphous silica glass. This project aims to elucidate the role of crack tip chemical reactions involving corrosive species such as water. Petascale computing

  15. Scavenging Elemental Sb Through Addition of NbSb to Mm0.9Fe3...

    Office of Scientific and Technical Information (OSTI)

    Title: Scavenging Elemental Sb Through Addition of NbSb to Mm0.9Fe3.5Co0.5S12 Skutterudites Authors: Zhang, Long ; Zhou, Chen ; Morelli, Donald T ; Sakamoto, Jeffrey Publication ...

  16. Feasibility study for a 10 MM GPY fuel ethanol plant, Brady Hot Springs,

    Office of Scientific and Technical Information (OSTI)

    Nevada. Volume II. Geothermal resource, agricultural feedstock, markets and economic viability (Technical Report) | SciTech Connect MM GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume II. Geothermal resource, agricultural feedstock, markets and economic viability Citation Details In-Document Search Title: Feasibility study for a 10 MM GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume II. Geothermal resource, agricultural feedstock, markets and economic viability The issues

  17. Feasibility study for a 10-MM-GPY fuel ethanol plant, Brady Hot Springs,

    Office of Scientific and Technical Information (OSTI)

    Nevada. Volume 1. Process and plant design (Technical Report) | SciTech Connect -MM-GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume 1. Process and plant design Citation Details In-Document Search Title: Feasibility study for a 10-MM-GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume 1. Process and plant design An investigation was performed to determine the technical and economic viability of constructing and operating a geothermally heated, biomass, motor fuel alcohol plant

  18. Development and application of QM/MM methods to study the solvation effects and surfaces

    SciTech Connect (OSTI)

    Dibya, Pooja Arora

    2010-05-16

    Quantum mechanical (QM) calculations have the advantage of attaining high-level accuracy, however QM calculations become computationally inefficient as the size of the system grows. Solving complex molecular problems on large systems and ensembles by using quantum mechanics still poses a challenge in terms of the computational cost. Methods that are based on classical mechanics are an inexpensive alternative, but they lack accuracy. A good trade off between accuracy and efficiency is achieved by combining QM methods with molecular mechanics (MM) methods to use the robustness of the QM methods in terms of accuracy and the MM methods to minimize the computational cost. Two types of QM combined with MM (QM/MM) methods are the main focus of the present dissertation: the application and development of QM/MM methods for solvation studies and reactions on the Si(100) surface. The solvation studies were performed using a discreet solvation model that is largely based on first principles called the effective fragment potential method (EFP). The main idea of combining the EFP method with quantum mechanics is to accurately treat the solute-solvent and solvent-solvent interactions, such as electrostatic, polarization, dispersion and charge transfer, that are important in correctly calculating solvent effects on systems of interest. A second QM/MM method called SIMOMM (surface integrated molecular orbital molecular mechanics) is a hybrid QM/MM embedded cluster model that mimics the real surface.3 This method was employed to calculate the potential energy surfaces for reactions of atomic O on the Si(100) surface. The hybrid QM/MM method is a computationally inexpensive approach for studying reactions on larger surfaces in a reasonably accurate and efficient manner. This thesis is comprised of four chapters: Chapter 1 describes the general overview and motivation of the dissertation and gives a broad background of the computational methods that have been employed in this work

  19. New Measurements of the Cosmic Background Radiation Temperature at3.3 mm Wavelength

    SciTech Connect (OSTI)

    Witebsky, C.; Smoot, G.; De Amici, G.; Friedman, S.D.

    1986-02-01

    We have measured the temperature of the cosmic background radiation (CBR) at 3.3 mm wavelength in 1982, 1983, and 1984 as part of a larger project to determine the CBR temperature at five wavelengths from 12 cm to 3.3 mm (Smoot et al. 1985). The 3.3-mm measurements yield a brightness temperature of 2.57 K with a 1{sigma} uncertainty of 20.12 K. This paper describes the instrument, the measurement techniques, and the data-analysis procedures used. Our result is in good agreement with recent measurements at comparable wavelengths by Meyer and Jura (1985) and by Peterson, Richards, and Timusk (1985), but it disagrees with the temperatures reported by Woody and Richards (1981).

  20. CHARMM-GUI Input Generator for NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM Simulations Using the CHARMM36 Additive Force Field

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lee, Jumin; Cheng, Xi; Swails, Jason M.; Yeom, Min Sun; Eastman, Peter K.; Lemkul, Justin A.; Wei, Shuai; Buckner, Joshua; Jeong, Jong Cheol; Qi, Yifei; et al

    2015-11-12

    Here we report that proper treatment of nonbonded interactions is essential for the accuracy of molecular dynamics (MD) simulations, especially in studies of lipid bilayers. The use of the CHARMM36 force field (C36 FF) in different MD simulation programs can result in disagreements with published simulations performed with CHARMM due to differences in the protocols used to treat the long-range and 1-4 nonbonded interactions. In this study, we systematically test the use of the C36 lipid FF in NAMD, GROMACS, AMBER, OpenMM, and CHARMM/OpenMM. A wide range of Lennard-Jones (LJ) cutoff schemes and integrator algorithms were tested to find themore » optimal simulation protocol to best match bilayer properties of six lipids with varying acyl chain saturation and head groups. MD simulations of a 1,2-dipalmitoyl-sn-phosphatidylcholine (DPPC) bilayer were used to obtain the optimal protocol for each program. MD simulations with all programs were found to reasonably match the DPPC bilayer properties (surface area per lipid, chain order parameters, and area compressibility modulus) obtained using the standard protocol used in CHARMM as well as from experiments. The optimal simulation protocol was then applied to the other five lipid simulations and resulted in excellent agreement between results from most simulation programs as well as with experimental data. AMBER compared least favorably with the expected membrane properties, which appears to be due to its use of the hard-truncation in the LJ potential versus a force-based switching function used to smooth the LJ potential as it approaches the cutoff distance. The optimal simulation protocol for each program has been implemented in CHARMM-GUI. This protocol is expected to be applicable to the remainder of the additive C36 FF including the proteins, nucleic acids, carbohydrates, and small molecules.« less

  1. A shallow convection parameterization for the non-hydrostatic MM5 mesoscale model

    SciTech Connect (OSTI)

    Seaman, N.L.; Kain, J.S.; Deng, A.

    1996-04-01

    A shallow convection parameterization suitable for the Pennsylvannia State University (PSU)/National Center for Atmospheric Research nonhydrostatic mesoscale model (MM5) is being developed at PSU. The parameterization is based on parcel perturbation theory developed in conjunction with a 1-D Mellor Yamada 1.5-order planetary boundary layer scheme and the Kain-Fritsch deep convection model.

  2. A mm-wave planar microcavity structure for electron linear accelerator system

    SciTech Connect (OSTI)

    Kang, Y.W.; Kustom, R.; Mills, F.; Mavrogenes, G.; Henke, H.

    1993-07-01

    The muffin-tin cavity structure is planar and well suited for mm-wave accelerator with silicon etching techniques. A constant impedance traveling-wave structure is considered for design simplicity. The RF parameters are calculated and the shunt impedance is compared with the shunt impedance of a disk loaded cylindrical structure.

  3. QM/MM Analysis of Cellulase Active Sites and Actions of the Enzymes on Substrates

    SciTech Connect (OSTI)

    Saharay, Moumita; Guo, Hao-Bo; Smith, Jeremy C; Guo, Hong

    2010-01-01

    Biodegradation of cellulosic biomass requires the actions of three types of secreted enzymes; endoglucanase (EC 3.2.1.4), cellobiohydrolase or exoglucanase (EC 3.2.1.91), and -glucosidase (EC 4.2.1.21). These enzymes act synergistically to hydrolyse the -1,4 bonds of cellulose and converts it into simple sugar. Hydrolysis of the glycosidic bond can occur either by net retention or by inversion of anomeric configuration at the anomeric center. QM/MM simulations are useful tools to study the energetics of the reactions and analyze the active-site structures at different states of the catalysis, including the formation of unstable transition states. Here, a brief description of previous work on glycoside hydrolases is first given. The results of the QM/MM potential energy and free energy simulations corresponding to glycosylation and deglycosylation processes are then provided for two retaining endoglucanases, Cel12A and Cel5A. The active-site structural features are analyzed based on the QM/MM results. The role of different residues and hydrogen bonding interactions during the catalysis and the importance of the sugar ring distortion are discussed for these two enzymes.

  4. Design development for the 50mm Superconducting Super Collider dipole cryostat

    SciTech Connect (OSTI)

    Nicol, T.H.

    1991-03-01

    The cryostat of a Superconducting Super Collider (SSC) dipole magnet consists of all magnet components except the magnet assembly itself. It serves to support the magnet accurately and reliably within the vacuum vessel, provide all required cryogenic piping, and to insulate the cold mass from heat radiated and conducted from the environment. It must function reliably during storage, shipping and handling, normal magnet operation, quenches, and seismic excitations, and must be manufacturable at low cost. The major components of the cryostat are the vacuum vessel, thermal shields, multilayer insulation system, cryogenic piping, interconnections, and suspension system. The overall design of a cryostat for superconducting accelerator magnets requires consideration of fluid flow, proper selection of materials for their thermal and structural performance at both ambient and operating temperature, and knowledge of the environment to which the magnets will be subjected over the course their expected operating life. This paper describes the design of the current 50mm SSC collider dipole cryostat and includes discussions on the structural and thermal considerations involved in the development of each of the major systems. Where appropriate, comparisons will be made with the 40mm cryostat. 7 refs., 5 figs., 4 tabs.

  5. MM-Estimator and Adjusted Super Smoother based Simultaneous Prediction Confedenc

    Energy Science and Technology Software Center (OSTI)

    2002-07-19

    A Novel Application of Regression Analysis (MM-Estimator) with Simultaneous Prediction Confidence Intervals are proposed to detect up- or down-regulated genes, which are outliers in scatter plots based on log-transformed red (Cy5 fluorescent dye) versus green (Cy3 fluorescent Dye) intensities. Advantages of the application: 1) Robust and Resistant MM-Estimator is a Reliable Method to Build Linear Regression In the presence of Outliers, 2) Exploratory Data Analysis Tools (Boxplots, Averaged Shifted Histograms, Quantile-Quantile Normal Plots and Scattermore » Plots) are Unsed to Test Visually underlying assumptions of linearity and Contaminated Normality in Microarray data), 3) Simultaneous prediction confidence intervals (SPCIs) Guarantee a desired confidence level across the whole range of the data points used for the scatter plots. Results of the outlier detection procedure is a set of significantly differentially expressed genes extracted from the employed microarray data set. A scatter plot smoother (super smoother or locally weighted regression) is used to quantify heteroscendasticity is residual variance (Commonly takes place in lower and higher intensity areas). The set of differentially expressed genes is quantified using interval estimates for P-values as a probabilistic measure of being outlier by chance. Monte Carlo simultations are used to adjust super smoother-based SPCIs.her.« less

  6. Fabrication and Analysis of 150-mm-Aperture Nb3Sn MQXF Coils

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Holik, E. F.; Ambrosio, G.; Anerella, M.; Bossert, R.; Cavanna, E.; Cheng, D.; Dietderich, D. R.; Ferracin, P.; Ghosh, A. K.; Bermudez, S. Izquierdo; et al

    2016-01-12

    The U.S. LHC Accelerator Research Program (LARP) and CERN are combining efforts for the HiLumi-LHC upgrade to design and fabricate 150-mm-aperture, interaction region quadrupoles with a nominal gradient of 130 T/m using Nb3Sn. To successfully produce the necessary long MQXF triplets, the HiLumi-LHC collaboration is systematically reducing risk and design modification by heavily relying upon the experience gained from the successful 120-mm-aperture LARP HQ program. First generation MQXF short (MQXFS) coils were predominately a scaling up of the HQ quadrupole design allowing comparable cable expansion during Nb3Sn formation heat treatment and increased insulation fraction for electrical robustness. A total ofmore » 13 first generation MQXFS coils were fabricated between LARP and CERN. Systematic differences in coil size, coil alignment symmetry, and coil length contraction during heat treatment are observed and likely due to slight variances in tooling and insulation/cable systems. Analysis of coil cross sections indicate that field-shaping wedges and adjacent coil turns are systematically displaced from the nominal location and the cable is expanding less than nominally designed. Lastly, a second generation MQXF coil design seeks to correct the expansion and displacement discrepancies by increasing insulation and adding adjustable shims at the coil pole and midplanes to correct allowed magnetic field harmonics.« less

  7. DESIGN AND CONSTRUCTION OF A 15 T, 120 MM BORE IR QUADRUPOLE MAGNET FOR LARP

    SciTech Connect (OSTI)

    Caspi, S.; Cheng, D.; Dietderich, D.; Felice, H.; Ferracin, P.; Hafalia, R.; Hannaford, R.; Sabbi, G. S.; Anerella, M.; Ghosh, A.; Schmalzle, J.; Wanderer, P.; Ambrosio, G.; Bossert, R.; Kashikhin, V.; Pasholk, D.; Zlobin, A.

    2009-05-04

    Pushing accelerator magnets beyond 10 T holds a promise of future upgrades to machines like the Large Hadron Collider (LHC) at CERN. Nb{sub 3}Sn conductor is at the present time the only practical superconductor capable of generating fields beyond 10 T. In support of the LHC Phase-II upgrade, the US LHC Accelerator Research Program (LARP) is developing a large bore (120 mm) IR quadrupole (HQ) capable of reaching 15 T at its conductor peak field and a peak gradient of 219 T/m at 1.9 K. While exploring the magnet performance limits in terms of gradient, forces and stresses the 1 m long two-layer coil will demonstrate additional features such as alignment and accelerator field quality. In this paper we summarize the design and report on the magnet construction progress.

  8. New 100 mm Gun Assembly Installation at Lawrence Livermore National Laboratory High Explosives Applications Facility

    SciTech Connect (OSTI)

    Vandersall, K S; Lee, R A; Chiao, P I; Garcia, F; Travis, J O; Forbes, J W

    2003-10-28

    A new 100mm gun assembly was recently installed and tested at Lawrence Livermore National Laboratories located in the High Explosives Applications Facility (HEAF). Thiot Ingenierie performed the design of the replacement barrel, based on improvements to the initial design. This design incorporated barrel and breech sections forged from CLARM series high-strength alloys obtained from Tecphy Corporation and machined by Manufacture de Forage. Part of the improvement of the design was implementing a laser alignment system for quick and accurate barrel alignment checks. This laser is also used to align the target assembly. This paper will detail the design changes incorporated into the installation, the testing process, and future direction of research for the new gun.

  9. Measurement of the large-scale anisotropy of the cosmic background radiation at 3mm

    SciTech Connect (OSTI)

    Epstein, G.L.

    1983-12-01

    A balloon-borne differential radiometer has measured the large-scale anisotropy of the cosmic background radiation (CBR) with high sensitivity. The antenna temperature dipole anistropy at 90 GHz (3 mm wavelength) is 2.82 +- 0.19 mK, corresponding to a thermodynamic anistropy of 3.48 +- mK for a 2.7 K blackbody CBR. The dipole direction, 11.3 +- 0.1 hours right ascension and -5.7/sup 0/ +- 1.8/sup 0/ declination, agrees well with measurements at other frequencies. Calibration error dominates magnitude uncertainty, with statistical errors on dipole terms being under 0.1 mK. No significant quadrupole power is found, placing a 90% confidence-level upper limit of 0.27 mK on the RMS thermodynamic quadrupolar anistropy. 22 figures, 17 tables.

  10. Assessing the Performance of 5mm White LED Light Sources forDeveloping-Country Applications

    SciTech Connect (OSTI)

    Mills, Evan

    2007-05-03

    Some white light-emitting diode (LED) light sources haverecently attained levels of efficiency and cost that allow them tocompete with fluorescent lighting for off-grid applications in thedeveloping world. Additional attributes (optics, size, ruggedness, andservice life) make them potentially superior products. Enormousreductions in energy use and greenhouse-gas emissions are thus possible,and system costs can be much lower given the ability to downsize thecharging and energy storage components compared to a fluorescentstrategy. However, there is a high risk of "market-spoiling" if inferiorproducts are introduced and result in user dissatisfaction. Completesystems involve the integration of light sources and optics, energysupply, and energy storage. A natural starting point for evaluatingproduct quality is to focus on the individual light sources. This reportdescribes testing results for batches of 10 5mm white LEDs from 26manufacturers. Efficacies and color properties are presented.

  11. A photocathode rf gun design for a mm-wave linac-based FEL

    SciTech Connect (OSTI)

    Nassiri, A.; Berenc, T,; Foster, J.; Waldschmidt, G.; Zhou, J.

    1995-07-01

    In recent years, advances in the rf gun technology have made it possible to produce small beam emittances suitable for short period microundulators which take advantage of the low emittance beam to reduce the wavelength of FELs. At the Advanced Photon Source, we are studying the design of a compact 50-MeV superconducting mm-wave linac-based FEL for the production of short wavelengths ({approximately}300 nm) to carry out FEL demonstration experiments. The electron source considered for the linac is a 30- GHz, 3 1/2-cell {pi}-mode photocathode rf gun. For cold model rf measurements a 15-GHz prototype structure was fabricated. Here we report on the design, numerical modelling and the initial cold-model rf measurement results on the 15-GHz prototype structure.

  12. THE DISCOVERY OF RADIO STARS WITHIN 10'' OF SgrA* AT 7 mm

    SciTech Connect (OSTI)

    Yusef-Zadeh, F.; Roberts, D. A.; Royster, M.; Bushouse, H.; Wardle, M.; Cotton, W.; Van Moorsel, G.

    2014-09-01

    Very Large Array observations of the Galactic center at 7 mm have produced an image of the 30'' surrounding SgrA* with a resolution of ?82 42 milliarcseconds (mas). A comparison with IR images taken simultaneously with the Very Large Telescope identifies 41 radio sources with L-band (3.8 ?m) stellar counterparts. The well-known young, massive stars in the central SgrA* cluster (e.g., IRS 16C, IRS 16NE, IRS 16SE2, IRS 16NW, IRS 16SW, AF, AFNW, IRS 34W, and IRS 33E) are detected with peak flux densities between ?0.2 and 1.3 mJy. The origin of the stellar radio emission in the central cluster is discussed in terms of ionized stellar winds with mass-loss rates in the range ?0.8-5 10{sup 5} M {sub ?} yr{sup 1}. Radio emission from eight massive stars is used as a tool for registration between the radio and infrared frames with mas precision within a few arcseconds of SgrA* . This is similar to the established technique of aligning SiO masers and evolved stars except that radio stars lie within a few arcseconds of SgrA*. Our data show a scatter of ?6.5 mas in the positions of the eight radio sources that appear in both the L-band and 7 mm images. Last, we use the radio and IR data to argue that members of IRS 13N are young stellar objects rather than dust clumps, supporting the hypothesis that recent star formation has occurred near SgrA*.

  13. S-i-s mm-wave mixers and detectors. Final report

    SciTech Connect (OSTI)

    Jillie, D.W.; Kroger, H.; Smith, L.N.; Shaw, D.M.

    1983-10-01

    This program is an effort to achieve the ultimate goal of fabricating refractory superconducting S-I-S mixer devices for operation in mm-wave receivers in the quantum mode and in the 8-10 K temperature range. The following progress has been made toward the above goal: (1) development of in-house capability of depositing niobium carbonitride films (Nb (x) N(y) of device quality with transition temperatures to approx. 16 K; (2) development of NbC(x)N(y):aSi:Nb and NbC(x)N(y):Ge:Nb devices of very high quality; (3) fabrication and successful operation of niobium based S-I-S mixer chips; and (4) fabrication and evaluation of aSi and Ge barrier all-NbC(x)N(y) devices. NbC(x)N(y):Ge:Nb devices have been fabricated with chemical vapor deposited (CVD) polycrystalline arsenic-doped germanium barriers. All-Nb-S-I-S mixer chips were fabricated and sent to Goddard Institute for Space Studies to be evaluated. The noise temperature was approx. 60 K and the conversion loss of 5 dB. These results are comparable to Pb alloy junction results. A second-generation mixer was designed by GISS.

  14. CHEMISTRY IN INFRARED DARK CLOUD CLUMPS: A MOLECULAR LINE SURVEY AT 3 mm

    SciTech Connect (OSTI)

    Sanhueza, Patricio; Jackson, James M.; Foster, Jonathan B.; Finn, Susanna C.; Garay, Guido; Silva, Andrea

    2012-09-01

    We have observed 37 Infrared Dark Clouds (IRDCs), containing a total of 159 clumps, in high-density molecular tracers at 3 mm using the 22 m ATNF Mopra Telescope located in Australia. After determining kinematic distances, we eliminated clumps that are not located in IRDCs and clumps with a separation between them of less than one Mopra beam. Our final sample consists of 92 IRDC clumps. The most commonly detected molecular lines are (detection rates higher than 8%) N{sub 2}H{sup +}, HNC, HN{sup 13}C, HCO{sup +}, H{sup 13}CO{sup +}, HCN, C{sub 2}H, HC{sub 3}N, HNCO, and SiO. We investigate the behavior of the different molecular tracers and look for chemical variations as a function of an evolutionary sequence based on Spitzer IRAC and MIPS emission. We find that the molecular tracers behave differently through the evolutionary sequence and some of them can be used to yield useful relative age information. The presence of HNC and N{sub 2}H{sup +} lines does not depend on the star formation activity. On the other hand, HC{sub 3}N, HNCO, and SiO are predominantly detected in later stages of evolution. Optical depth calculations show that in IRDC clumps the N{sub 2}H{sup +} line is optically thin, the C{sub 2}H line is moderately optically thick, and HNC and HCO{sup +} are optically thick. The HCN hyperfine transitions are blended, and, in addition, show self-absorbed line profiles and extended wing emission. These factors combined prevent the use of HCN hyperfine transitions for the calculation of physical parameters. Total column densities of the different molecules, except C{sub 2}H, increase with the evolutionary stage of the clumps. Molecular abundances increase with the evolutionary stage for N{sub 2}H{sup +} and HCO{sup +}. The N{sub 2}H{sup +}/HCO{sup +} and N{sub 2}H{sup +}/HNC abundance ratios act as chemical clocks, increasing with the evolution of the clumps.

  15. A unique gun application for both high velocity and low velocity projectiles in a standard 155mm long tom gun

    SciTech Connect (OSTI)

    Garcia, J.R.

    1990-01-01

    The Terminal Ballistics Facility at Sandia National Laboratores in Albuquerque, New Mexico has developed an inexpensive and reliable capability for environmental testing of nuclear and kinetic energy weapon systems using the standard military 155 mm long tom gun. An unusual priming technique and charge configuration developed by Sandia National laboratories provides repeatable results such that payloads may be launched outside of the normal operating regime (both high and low) for the 155 mm gun. A 15 pound payload was reliably launched at 1000 fps with a breech pressure of 3000 psi. Another 20 pound payload was reliably launched to 5000 fps with a breech pressure of 50000 psi. A detailed description of charge configuration and test results is presented. 21 figs., 4 tabs.

  16. Measurement of relative output factors for the 8 and 4 mm collimators of Leksell Gamma Knife Perfexion by film dosimetry

    SciTech Connect (OSTI)

    Novotny, Josef Jr.; Bhatnagar, Jagdish P.; Quader, Mubina A.; Bednarz, Greg; Lunsford, L. Dade; Huq, M. Saiful

    2009-05-15

    Three types of films, Kodak EDR2, Gafchromic EBT, and Gafchromic MD-V2-55, were used to measure relative output factors of 4 and 8 mm collimators of the Leksell Gamma Knife Perfexion. The optical density to dose calibration curve for each of the film types was obtained by exposing the films to a range of known doses. Ten data points were acquired for each of the calibration curves in the dose ranges from 0 to 4 Gy, 0 to 8 Gy, and 0 to 80 Gy for Kodak EDR2, Gafchromic EBT, and Gafchromic MD-V2-55 films, respectively. For the measurement of relative output factors, five films of each film type were exposed to a known dose. All films were scanned using EPSON EXPRESSION 10000 XL scanner with 200 dpi resolution in 16 bit gray scale for EDR2 film and 48 bit color scale for Gafchromic films. The scanned images were imported in the red channel for both Gafchromic films. The background corrections from an unexposed film were applied to all films. The output factors obtained from film measurements were in a close agreement both with the Monte Carlo calculated values of 0.924 and 0.805 for 8 and 4 mm collimators, respectively. These values are provided by the vendor and used as default values in the vendor's treatment planning system. The largest differences were noted for the Kodak EDR 2 films (-2.1% and -4.5% for 8 and 4 mm collimators, respectively). The best agreement observed was for EBT Gafchromic film (-0.8% and +0.6% differences for 8 and 4 mm collimators, respectively). Based on the present values, no changes in the default relative output factor values were made in the treatment planning system.

  17. Magnetic Materials (MM)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Contacts Calendars Community Scientific Access Site Access Training Science & Education Science & Research Highlights Conferences Seminars Publications Annual Reports APS Upgrade...

  18. Ability of the Confined Explosive Component Water Gap Test STANAG 4363 to Assess the Shock Sensitivity of MM-Scale Detonators

    SciTech Connect (OSTI)

    Lefrancois, A S; Roeske, F; Benterou, J; Tarver, C M; Lee, R S; Hannah, B

    2006-02-10

    The Explosive Component Water Gap Test (ECWGT) has been validated to assess the shock sensitivity of lead and booster components having a diameter larger than 5 mm. Several countries have investigated by experiments and numerical simulations the effect of confinement on the go/no go threshold for Pentaerythritol Tetranitrate (PETN) pellets having a height and diameter of 3 mm, confined by a steel annulus of wall thickness 1-3.5 mm. Confinement of the PETN by a steel annulus of the same height of the pellet with 1-mm wall thickness makes the component more sensitive (larger gap). As the wall thickness is increased to 2-mm, the gap increases a lesser amount, but when the wall thickness is increased to 3.5-mm a decrease in sensitivity is observed (smaller gap). This decrease of the water gap has been reproduced experimentally. Recent numerical simulations using Ignition and Growth model [1] for the PETN Pellet have reproduced the experimental results for the steel confinement up to 2 mm thick [2]. The presence of a stronger re-shock following the first input shock from the water and focusing on the axis have been identified in the pellet due to the steel confinement. The double shock configuration is well-known to lead in some cases to shock desensitization. This work presents the numerical simulations using Ignition and Growth model for LX16 (PETN based HE) and LX19 (CL20 based HE) Pellets [3] in order to assess the shock sensitivity of mm-scale detonators. The pellets are 0.6 mm in diameter and 3 mm length with different type of steel confinement 2.2 mm thick and 4.7 mm thick. The influence of an aluminum confinement is calculated for the standard LX 16 pellet 3 mm in diameter and 3 mm in height. The question of reducing the size of the donor charge is also investigated to small scale the test itself.

  19. DOE/RA/50354 Volume II FEAS)IBILITY STUDY FOR A 10 MM GPY FUEL ETHANOL PLANT

    Office of Scientific and Technical Information (OSTI)

    DOE/RA/50354 Volume II FEAS)IBILITY STUDY FOR A 10 MM GPY FUEL ETHANOL PLANT BRADY HOT SPRINGS, NEVADA . Volume II - Geothermal Resource, Agricultural Feedstock, Markets and E c o q h i c Viability 8 *e _. - - * 7 , - - - September 1980 i Prepared by Geothermal Food Processors, Inc. Fernley, Nevada and The Andersen Group DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency Thereof,

  20. Simultaneous Radio to (Sub-) mm-Monitoring of Variability and Spectral Shape Evolution of potential GLAST Blazars

    SciTech Connect (OSTI)

    Fuhrmann, L.; Zensus, J. A.; Krichbaum, T. P.; Angelakis, E.; Readhead, A. C. S.

    2007-07-12

    The Large Area Telescope (LAT) instrument onboard GLAST offers a tremendous opportunity for future blazar studies. In order to fully benefit from its capabilities and to maximize the scientific return from the LAT, it is of great importance to conduct dedicated multi-frequency monitoring campaigns that will result comprehensive observations. Consequently, we initiated an effort to conduct a GLAST-dedicated, quasi-simultaneous, broad-band flux-density (and polarization) monitoring of potential GLAST blazars with the Effelsberg and OVRO radio telescopes (11 cm to 7 mm wavelength). Here, we present a short overview of these activities which will complement the multi-wavelengths activities of the GLAST/LAT collaboration towards the 'low-energy' radio bands. Further we will give a brief outlook including the extension of this coordinated campaign towards higher frequencies and future scientific aims.

  1. Simultaneous Radio to (Sub-) Mm-Monitoring of Variability and Spectral Shape Evolution of Potential GLAST Blazars

    SciTech Connect (OSTI)

    Fuhrmann, L.; Zensus, J.A.; Krichbaum, T.P.; Angelakis, E.; Readhead, A.C.S.; /Caltech

    2011-11-29

    The Large Area Telescope (LAT) instrument onboard GLAST offers a tremendous opportunity for future blazar studies. In order to fully benefit from its capabilities and to maximize the scientific return from the LAT, it is of great importance to conduct dedicated multi-frequency monitoring campaigns that will result comprehensive observations. Consequently, we initiated an effort to conduct a GLAST-dedicated, quasi-simultaneous, broad-band flux-density (and polarization) monitoring of potential GLAST blazars with the Effelsberg and OVRO radio telescopes (11 cm to 7mm wavelength). Here, we present a short overview of these activities which will complement the multi-wavelengths activities of the GLAST/LAT collaboration towards the 'low-energy' radio bands. Further we will give a brief outlook including the extension of this coordinated campaign towards higher frequencies and future scientific aims.

  2. Electron dynamics in complex environments with real-time time dependent density functional theory in a QM-MM framework

    SciTech Connect (OSTI)

    Morzan, Uriel N.; Ramrez, Francisco F.; Scherlis, Damin A. E-mail: mcgl@qb.ffyb.uba.ar; Lebrero, Mariano C. Gonzlez E-mail: mcgl@qb.ffyb.uba.ar

    2014-04-28

    This article presents a time dependent density functional theory (TDDFT) implementation to propagate the Kohn-Sham equations in real time, including the effects of a molecular environment through a Quantum-Mechanics Molecular-Mechanics (QM-MM) hamiltonian. The code delivers an all-electron description employing Gaussian basis functions, and incorporates the Amber force-field in the QM-MM treatment. The most expensive parts of the computation, comprising the commutators between the hamiltonian and the density matrixrequired to propagate the electron dynamics, and the evaluation of the exchange-correlation energy, were migrated to the CUDA platform to run on graphics processing units, which remarkably accelerates the performance of the code. The method was validated by reproducing linear-response TDDFT results for the absorption spectra of several molecular species. Two different schemes were tested to propagate the quantum dynamics: (i) a leap-frog Verlet algorithm, and (ii) the Magnus expansion to first-order. These two approaches were confronted, to find that the Magnus scheme is more efficient by a factor of six in small molecules. Interestingly, the presence of iron was found to seriously limitate the length of the integration time step, due to the high frequencies associated with the core-electrons. This highlights the importance of pseudopotentials to alleviate the cost of the propagation of the inner states when heavy nuclei are present. Finally, the methodology was applied to investigate the shifts induced by the chemical environment on the most intense UV absorption bands of two model systems of general relevance: the formamide molecule in water solution, and the carboxy-heme group in Flavohemoglobin. In both cases, shifts of several nanometers are observed, consistently with the available experimental data.

  3. Study of the performance of a novel 1 mm resolution dual-panel PET camera design dedicated to breast cancer imaging using Monte Carlo simulation

    SciTech Connect (OSTI)

    Zhang Jin; Olcott, Peter D.; Chinn, Garry; Foudray, Angela M. K.; Levin, Craig S.

    2007-02-15

    We studied the performance of a dual-panel positron emission tomography (PET) camera dedicated to breast cancer imaging using Monte Carlo simulation. The PET camera under development has two 10x15 cm{sup 2} plates that are constructed from arrays of 1x1x3 mm{sup 3} LSO crystals coupled to novel ultra-thin (<200 {mu}m) silicon position-sensitive avalanche photodiodes (PSAPD). In this design the photodetectors are configured ''edge-on'' with respect to incoming photons which encounter a minimum of 2 cm thick of LSO with directly measured photon interaction depth. Simulations predict that this camera will have 10-15% photon sensitivity, for an 8-4 cm panel separation. Detector measurements show {approx}1 mm{sup 3} intrinsic spatial resolution, <12% energy resolution, and {approx}2 ns coincidence time resolution. By performing simulated dual-panel PET studies using a phantom comprising active breast, heart, and torso tissue, count performance was studied as a function of coincident time and energy windows. We also studied visualization of hot spheres of 2.5-4.0 mm diameter and various locations within the simulated breast tissue for 1x1x3 mm{sup 3}, 2x2x10 mm{sup 3}, 3x3x30 mm{sup 3}, and 4x4x20 mm{sup 3} LSO crystal resolutions and different panel separations. Images were reconstructed by focal plane tomography with attenuation and normalization corrections applied. Simulation results indicate that with an activity concentration ratio of tumor:breast:heart:torso of 10:1:10:1 and 30 s of acquisition time, only the dual-plate PET camera comprising 1x1x3 mm{sup 3} crystals could resolve 2.5 mm diameter spheres with an average peak-to-valley ratio of 1.3.

  4. Thermal regulation of tightly packed solid-state photodetectors in a 1 mm{sup 3} resolution clinical PET system

    SciTech Connect (OSTI)

    Freese, D. L.; Vandenbroucke, A.; Innes, D.; Lau, F. W. Y.; Hsu, D. F. C.; Reynolds, P. D.; Levin, Craig S.

    2015-01-15

    Purpose: Silicon photodetectors are of significant interest for use in positron emission tomography (PET) systems due to their compact size, insensitivity to magnetic fields, and high quantum efficiency. However, one of their main disadvantages is fluctuations in temperature cause strong shifts in gain of the devices. PET system designs with high photodetector density suffer both increased thermal density and constrained options for thermally regulating the devices. This paper proposes a method of thermally regulating densely packed silicon photodetectors in the context of a 1 mm{sup 3} resolution, high-sensitivity PET camera dedicated to breast imaging. Methods: The PET camera under construction consists of 2304 units, each containing two 8 × 8 arrays of 1 mm{sup 3} LYSO crystals coupled to two position sensitive avalanche photodiodes (PSAPD). A subsection of the proposed camera with 512 PSAPDs has been constructed. The proposed thermal regulation design uses water-cooled heat sinks, thermoelectric elements, and thermistors to measure and regulate the temperature of the PSAPDs in a novel manner. Active cooling elements, placed at the edge of the detector stack due to limited access, are controlled based on collective leakage current and temperature measurements in order to keep all the PSAPDs at a consistent temperature. This thermal regulation design is characterized for the temperature profile across the camera and for the time required for cooling changes to propagate across the camera. These properties guide the implementation of a software-based, cascaded proportional-integral-derivative control loop that controls the current through the Peltier elements by monitoring thermistor temperature and leakage current. The stability of leakage current, temperature within the system using this control loop is tested over a period of 14 h. The energy resolution is then measured over a period of 8.66 h. Finally, the consistency of PSAPD gain between independent

  5. Measurement of Boundary-Layer Temperature Profiles by a Scanning 5-MM Radiometer During the 1999 Winter NSA/AAO Radiometer Exp

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Boundary-Layer Temperature Profiles by a Scanning 5-MM Radiometer During the 1999 Winter NSA/AAO Radiometer Experiment and WVIOP 2000 V. Y. Leuski and E. R. Westwater Cooperative Institute for Research in the Environmental Sciences National Oceanic and Atmospheric Administration Environmental Technology Laboratory University of Colorado Boulder, Colorado Introduction A scanning 5-mm-wavelength radiometer was deployed during two Intensive Operational Periods (IOPs) at the Atmospheric Radiation

  6. High quality draft genome sequence of Leucobacter chironomi strain MM2LBT (DSM 19883T) isolated from a Chironomus sp. egg mass

    SciTech Connect (OSTI)

    Laviad, Sivan; Lapidus, Alla; Copeland, Alex; Reddy, T. B. K.; Huntemann, Marcel; Pati, Amrita; Ivanova, Natalia N.; Markowitz, Victor M.; Pukall, Rüdiger; Klenk, Hans-Peter; Woyke, Tanja; Kyrpides, Nikos C.; Halpern, Malka

    2015-05-08

    Leucobacter chironomi strain MM2LBT (Halpern et al., Int J Syst Evol Microbiol 59:665-70 2009) is a Gram-positive, rod shaped, non-motile, aerobic, chemoorganotroph bacterium. L. chironomi belongs to the family Microbacteriaceae, a family within the class Actinobacteria. Strain MM2LBT was isolated from a chironomid (Diptera; Chironomidae) egg mass that was sampled from a waste stabilization pond in northern Israel. In a phylogenetic tree based on 16S rRNA gene sequences, strain MM2LBT formed a distinct branch within the radiation encompassing the genus Leucobacter. Here we describe the features of this organism, together with the complete genome sequence and annotation. We find that the DNA GC content is 69.90%. The chromosome length is 2,964,712 bp. It encodes 2,690 proteins and 61 RNA genes. L. chironomi genome is part of the Genomic Encyclopedia of Type Strains, Phase I: the one thousand microbial genomes (KMG) project.

  7. High quality draft genome sequence of Leucobacter chironomi strain MM2LBT (DSM 19883T) isolated from a Chironomus sp. egg mass

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Laviad, Sivan; Lapidus, Alla; Copeland, Alex; Reddy, T. B. K.; Huntemann, Marcel; Pati, Amrita; Ivanova, Natalia N.; Markowitz, Victor M.; Pukall, Rüdiger; Klenk, Hans-Peter; et al

    2015-05-08

    Leucobacter chironomi strain MM2LBT (Halpern et al., Int J Syst Evol Microbiol 59:665-70 2009) is a Gram-positive, rod shaped, non-motile, aerobic, chemoorganotroph bacterium. L. chironomi belongs to the family Microbacteriaceae, a family within the class Actinobacteria. Strain MM2LBT was isolated from a chironomid (Diptera; Chironomidae) egg mass that was sampled from a waste stabilization pond in northern Israel. In a phylogenetic tree based on 16S rRNA gene sequences, strain MM2LBT formed a distinct branch within the radiation encompassing the genus Leucobacter. Here we describe the features of this organism, together with the complete genome sequence and annotation. We find thatmore » the DNA GC content is 69.90%. The chromosome length is 2,964,712 bp. It encodes 2,690 proteins and 61 RNA genes. L. chironomi genome is part of the Genomic Encyclopedia of Type Strains, Phase I: the one thousand microbial genomes (KMG) project.« less

  8. Materials and Electrical Characterization of Physical Vapor Deposited LaxLu1-xO3 Thin Films on 300 mm Silicon

    SciTech Connect (OSTI)

    L Edge; T Vo; V Paruchuri; R Iijima; J Bruley; J Jordan-Sweet; B Linder; A Kellock; T Tsunoda; S Shinde

    2011-12-31

    La{sub x}Lu{sub 1-x}O{sub 3} thin films were deposited on 300 mm silicon wafers by physical vapor deposition and fabricated into field-effect transistors using a gate-first process flow. The films were characterized using transmission electron microscopy, Rutherford backscattering spectrometry, and synchrotron x-ray diffraction. The results show the films remain amorphous even at temperatures of 1000 C. The dielectric properties of La{sub x}Lu{sub 1-x}O{sub 3} (0.125 {<=} x {<=} 0.875) thin films were evaluated as a function of film composition. The amorphous La{sub x}Lu{sub 1-x}O{sub 3} thin films have a dielectric constant (K) of 23 across the composition range. The inversion thickness (T{sub inv}) of the La{sub x}Lu{sub 1-x}O{sub 3} thin films was scaled to <1.0 nm.

  9. Surface roughness statistics and temperature step stress effects for D-T solid layers equilibrated inside a 2 mm beryllium torus

    SciTech Connect (OSTI)

    Sheliak, J.D.; Hoffer, J.K.

    1998-12-31

    Solid D-T layers are equilibrated inside a 2 mm diameter beryllium toroidal cell at temperatures ranging from 19.0 K to 19.6 K, using the beta-layering process. The experimental runs consists of multiple cycles of rapid- or slow-freezing of the initially liquid D-T charge, followed by a lengthy period of beta-layering equilibration, terminated by melting the layer. The temperature was changed in discrete steps at the end of some equilibration cycles in an attempt to simulate actual ICF target conditions. High-precision images of the D-T solid-vapor interface were analyzed to yield the surface roughness {sigma}{sub mns} as a sum of modal contributions. Results show an overage {sigma}{sub mns} of 1.3 {+-} 0.3 {micro}m for layers equilibrated at 19.0 K and show an inverse dependence of {sigma}{sub mns} on equilibration temperature up to 19.525 K. Inducing sudden temperature perturbations lowered {sigma}{sub mns} to 1.0 {+-} 0.05 {micro}m.

  10. High moisture corn stover pelleting in a flat die pellet mill fitted with a 6 mm die: physical properties and specific energy consumption

    SciTech Connect (OSTI)

    Tumuluru, Jaya Shankar

    2015-06-15

    The quality and specific energy consumption (SEC) of the biomass pellets produced depend upon pelleting process conditions. The present study includes understanding the effect of feedstock moisture in the range of 28–38% (wet basis [w.b.]) and preheating in the range of 30–110°C at two die speeds of 40 and 60 Hz on the physical properties and SEC. A flat die pellet mill fitted with a 6 mm die was used in the present study. The physical properties of pellets such as moisture content, unit, bulk and tapped density, durability, and expansion ratio and SEC of the pelleting process are measured. The results indicate that the pellets produced have durability values in the range of 87–98%, and unit bulk and tapped density in the range of 670–1100, 375–575, and 420–620 kg/m³. Increasing the feedstock moisture content from 33% to 38% (w.b) decreased the unit, bulk and tapped density by about 30–40%. Increasing feedstock moisture content increased the expansion ratio and decreased the density values. A higher feedstock moisture content of 38% (w.b.) and higher preheating temperature of 110°C resulted in lower density and a higher expansion ratio, which can be attributed to flash off of moisture as the material extrudes out of the die. The SEC was in the range of 75–275 kWh/ton. Higher feedstock moisture content of 38% (w.b.) and a lower die speed of 40 Hz increased the SEC, whereas lower to medium preheating temperature (30–70°C), medium feedstock moisture content of 33% (w.b.), and a higher die speed of 60 Hz minimized the SEC to <100 kWh/ton.

  11. High moisture corn stover pelleting in a flat die pellet mill fitted with a 6 mm die: physical properties and specific energy consumption

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Tumuluru, Jaya Shankar

    2015-06-15

    The quality and specific energy consumption (SEC) of the biomass pellets produced depend upon pelleting process conditions. The present study includes understanding the effect of feedstock moisture in the range of 28–38% (wet basis [w.b.]) and preheating in the range of 30–110°C at two die speeds of 40 and 60 Hz on the physical properties and SEC. A flat die pellet mill fitted with a 6 mm die was used in the present study. The physical properties of pellets such as moisture content, unit, bulk and tapped density, durability, and expansion ratio and SEC of the pelleting process are measured.more » The results indicate that the pellets produced have durability values in the range of 87–98%, and unit bulk and tapped density in the range of 670–1100, 375–575, and 420–620 kg/m³. Increasing the feedstock moisture content from 33% to 38% (w.b) decreased the unit, bulk and tapped density by about 30–40%. Increasing feedstock moisture content increased the expansion ratio and decreased the density values. A higher feedstock moisture content of 38% (w.b.) and higher preheating temperature of 110°C resulted in lower density and a higher expansion ratio, which can be attributed to flash off of moisture as the material extrudes out of the die. The SEC was in the range of 75–275 kWh/ton. Higher feedstock moisture content of 38% (w.b.) and a lower die speed of 40 Hz increased the SEC, whereas lower to medium preheating temperature (30–70°C), medium feedstock moisture content of 33% (w.b.), and a higher die speed of 60 Hz minimized the SEC to <100 kWh/ton.« less

  12. Atmospheric pressure plasma chemical vapor deposition reactor for 100 mm wafers, optimized for minimum contamination at low gas flow rates

    SciTech Connect (OSTI)

    Anand, Venu E-mail: venuanand83@gmail.com; Shivashankar, S. A.; Nair, Aswathi R.; Mohan Rao, G.

    2015-08-31

    Gas discharge plasmas used for thinfilm deposition by plasma-enhanced chemical vapor deposition (PECVD) must be devoid of contaminants, like dust or active species which disturb the intended chemical reaction. In atmospheric pressure plasma systems employing an inert gas, the main source of such contamination is the residual air inside the system. To enable the construction of an atmospheric pressure plasma (APP) system with minimal contamination, we have carried out fluid dynamic simulation of the APP chamber into which an inert gas is injected at different mass flow rates. On the basis of the simulation results, we have designed and built a simple, scaled APP system, which is capable of holding a 100 mm substrate wafer, so that the presence of air (contamination) in the APP chamber is minimized with as low a flow rate of argon as possible. This is examined systematically by examining optical emission from the plasma as a function of inert gas flow rate. It is found that optical emission from the plasma shows the presence of atmospheric air, if the inlet argon flow rate is lowered below 300 sccm. That there is minimal contamination of the APP reactor built here, was verified by conducting an atmospheric pressure PECVD process under acetylene flow, combined with argon flow at 100 sccm and 500 sccm. The deposition of a polymer coating is confirmed by infrared spectroscopy. X-ray photoelectron spectroscopy shows that the polymer coating contains only 5% of oxygen, which is comparable to the oxygen content in polymer deposits obtained in low-pressure PECVD systems.

  13. Clarification of the Mechanism of Acylation Reaction and Origin of Substrate Specificity of the Serine-Carboxyl Peptidase Sedolisin through QM/MM Free Energy Simulations

    SciTech Connect (OSTI)

    Xu, Qin; Yao, Jianzhuang; Wiodawer, Alexander; Guo, Hong

    2011-01-01

    Quantum mechanical/molecular mechanical (QM/MM) free energy simulations are applied for understanding the mechanism of the acylation reaction catalyzed by sedolisin, a representative serine-carboxyl peptidase, leading to the acyl-enzyme (AE) and first product from the enzyme-catalyzed reaction. One of the interesting questions to be addressed in this work is the origin of the substrate specificity of sedolisin that shows a relatively high activity on the substrates with Glu at P1 site. It is shown that the bond making and breaking events of the acylation reaction involving a peptide substrate (LLE*FL) seem to be accompanied by local conformational changes, proton transfers as well as the formation of alternative hydrogen bonds. The results of the simulations indicate that the conformational change of Glu at P1 site and its formation of a low barrier hydrogen bond with Asp-170 (along with the transient proton transfer) during the acylation reaction might play a role in the relatively high specificity for the substrate with Glu at P1 site. The role of some key residues in the catalysis is confirmed through free energy simulations. Glu-80 is found to act as a general base to accept a proton from Ser-287 during the nucleophilic attack and then as a general acid to protonate the leaving group (N H of P1 -Phe) during the cleavage of the scissile peptide bond. Another acidic residue, Asp-170, acts as a general acid catalyst to protonate the carbonyl of P1-Glu during the formation of the tetrahedral intermediate and as a general base for the formation of the acyl-enzyme. The energetic results from the free energy simulations support the importance of proton transfer from Asp-170 to the carbonyl of P1-Glu in the stabilization of the tetrahedral intermediate and the formation of a low-barrier hydrogen bond between the carboxyl group of P1-Glu and Asp-170 in the lowering of the free energy barrier for the cleavage of the peptide bond. Detailed analyses of the proton transfers

  14. Computation of the free energy due to electron density fluctuation of a solute in solution: A QM/MM method with perturbation approach combined with a theory of solutions

    SciTech Connect (OSTI)

    Suzuoka, Daiki; Takahashi, Hideaki Morita, Akihiro

    2014-04-07

    We developed a perturbation approach to compute solvation free energy ?? within the framework of QM (quantum mechanical)/MM (molecular mechanical) method combined with a theory of energy representation (QM/MM-ER). The energy shift ? of the whole system due to the electronic polarization of the solute is evaluated using the second-order perturbation theory (PT2), where the electric field formed by surrounding solvent molecules is treated as the perturbation to the electronic Hamiltonian of the isolated solute. The point of our approach is that the energy shift ?, thus obtained, is to be adopted for a novel energy coordinate of the distribution functions which serve as fundamental variables in the free energy functional developed in our previous work. The most time-consuming part in the QM/MM-ER simulation can be, thus, avoided without serious loss of accuracy. For our benchmark set of molecules, it is demonstrated that the PT2 approach coupled with QM/MM-ER gives hydration free energies in excellent agreements with those given by the conventional method utilizing the Kohn-Sham SCF procedure except for a few molecules in the benchmark set. A variant of the approach is also proposed to deal with such difficulties associated with the problematic systems. The present approach is also advantageous to parallel implementations. We examined the parallel efficiency of our PT2 code on multi-core processors and found that the speedup increases almost linearly with respect to the number of cores. Thus, it was demonstrated that QM/MM-ER coupled with PT2 deserves practical applications to systems of interest.

  15. PACE-90 water and solute transport calculations for 0.01, 0.1, and 0. 5 mm/yr infiltration into Yucca Mountain; Yucca Mountain Site Characterization Project

    SciTech Connect (OSTI)

    Dykhuizen, R.C.; Eaton, R.R.; Hopkins, P.L.; Martinez, M.J.

    1991-12-01

    Numerical results are presented for the Performance Assessment Calculational Exercise (PACE-90). One- and two-dimensional water and solute transport are presented for steady infiltration into Yucca Mountain. Evenly distributed infiltration rates of 0.01, 0.1, and 0.5 mm/yr were considered. The calculations of solute transport show that significant amounts of radionuclides can reach the water table over 100,000 yr at the 0.5 mm/yr rate. For time periods less than 10,000 yr or infiltrations less than 0.1 mm/yr very little solute reaches the water table. The numerical simulations clearly demonstrate that multi-dimensional effects can result in significant decreases in the travel time of solute through the modeled domain. Dual continuum effects are shown to be negligible for the low steady state fluxes considered. However, material heterogeneities may cause local amplification of the flux level in multi-dimensional flows. These higher flux levels may then require modeling of a dual continuum porous medium.

  16. NDI using mm-wave resonant techniques

    SciTech Connect (OSTI)

    Martens, J.S.; Sachtjen, S.; Sorensen, N.R.

    1995-08-01

    Millimeter wave resonant measurements are commonly used for surface and near-surface materials characterization including the detection of cracks and defects, analysis of semiconducting and dielectric materials, and analysis of metallic electrical properties beneath coatings. Recent work has also shown the approach to be useful in evaluating corrosion products and the detection of incipient corrosion and corrosion cracking. In the analysis area, complex permittivity data of the corrosion products can be extracted, usually with accuracy of a few percent or better, to aid in identification of the product and possibly of mechanisms. In the detection area, corrosion-related cracks of order 100{mu}m or less near the surface have been detected and corrosion products have been detected beneath a variety of paints. Surface preparation requirements are minimal, particularly compared to some optical techniques, giving increased hope of field applicability. A number of examples of NDI on aircraft related materials and structures will be presented along with an assessment of detection and accuracy limits.

  17. SSC 50 mm collider dipole cryostat design

    SciTech Connect (OSTI)

    Nicol, T.H.

    1992-04-01

    The cryostat of a Superconducting Super Collider (SSC) dipole magnet consists of all magnet components except the magnet assembly itself. It serves to support the magnet accurately and reliably within the vacuum vessel, provide all required cryogenic piping, and to insulate the cold mass from heat radiated and conducted from the environment. It must function reliably during storage, shipping and handling, normal magnet operation, quenches, and seismic excitations, and must be manufacturable at low cost. The major components of the cryostat are the vacuum vessel, thermal shields, multilayer insulation system, cryogenic piping, interconnections, and suspension system. The overall design of a cryostat for superconducting accelerator magnets requires consideration of fluid flow, proper selection of materials for their thermal and structural performance at both ambient and operating temperature, and knowledge of the environment to which the magnets will be subjected over the course of their expected operating life. This paper describes the design of the current SSC dipole magnet cryostat and includes discussions on the structural and thermal considerations involved in the development of each of the major systems.

  18. 20% (AM1.5) efficiency GaAs solar cells on sub-mm grain-size poly-Ge and its transition to low-cost substrates

    SciTech Connect (OSTI)

    Venkatasubramanian, R.; O`Quinn, B.C.; Siivola, E.; Keyes, B.; Ahrenkiel, R.

    1997-12-31

    Some of the key material and device issues related to the development of GaAs solar cells on poly-Ge substrates, including the dark-current reduction mechanism with an undoped spacer at the p{sup +}-n depletion layer, are discussed. Device-structure optimization studies that have led the authors to achieve an AM1.5 efficiency of {approximately}20% for a 4-cm{sup 2}-area GaAs cell on sub-mm grain-size poly-Ge and an efficiency of {approximately}21% for a 0.25-cm{sup 2}-area cell are presented. This successful demonstration of high-efficiency GaAs cells on sub-mm grain-size poly-Ge substrates have motivated us to consider the development of high-quality GaAs materials on significantly lower-cost substrates such as glass and moly foils. To date, the authors have achieved a best minority-carrier lifetime of 0.41 nsec in an n-GaAs thin-film on moly. The role of Group-VI dopant in the possible passivation of grain-boundaries in poly-GaAs is discussed. Development of PV-quality GaAs material, with minority-carrier lifetime of 1 to 2 nsec, on los-cost moly foils can significantly impact both the terrestrial and the space PV applications.

  19. Summary of Decisions - MM DD YYYY - MM DD YYYY | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    concerns associated with his failure to provide accurate answers regarding past illegal drug use on several security questionnaires and during several personnel security...

  20. Stratus Cloud Structure from MM-Radar Transects and Satellite...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Met. Soc., Boston, Massachusetts. Clothiaux, E. E., M. A. Miller, B. A. Albrecht, T. P. Ackerman, J. Verlinde, D. M. Babb, R. M. Peters, and W. J. Syrett, 1995: An evaluation of a ...

  1. Microsoft Word - MM5_LSM_JGR.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and terrestrial ecosystem exchanges of energy, momentum, water, and trace gases. ... timing of energy, momentum, water, and carbon fluxes between the atmosphere and ecosystem. ...

  2. Posters Surface Flux Intercomparison Between the MM5 Model

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Preliminary results of this intercomparison were reported last year for the Winter Icing and Storms Program 91 (WISP91) experiment in Colorado (Oncley and Dudhia 1993). Four ...

  3. THE CM-, MM-, AND SUB-MM-WAVE SPECTRUM OF ALLYL ISOCYANIDE AND RADIOASTRONOMICAL OBSERVATIONS IN ORION KL AND THE SgrB2 LINE SURVEYS

    SciTech Connect (OSTI)

    Haykal, I.; Margulès, L.; Huet, T. R.; Motyienko, R. A.; Écija, P.; Cocinero, E. J.; Basterretxea, F.; Fernández, J. A.; Castaño, F.; Guillemin, J. C.; Tercero, B.; Cernicharo, J.

    2013-11-10

    Organic isocyanides have an interesting astrochemistry and some of these molecules have been detected in the interstellar medium (ISM). However, rotational spectral data for this class of compounds are still scarce. We provide laboratory spectra of the four-carbon allyl isocyanide covering the full microwave region, thus allowing a potential astrophysical identification in the ISM. We assigned the rotational spectrum of the two cis (synperiplanar) and gauche (anticlinal) conformations of allyl isocyanide in the centimeter-wave region (4-18 GHz), resolved its {sup 14}N nuclear quadrupole coupling (NQC) hyperfine structure, and extended the measurements into the millimeter and submillimeter-wave (150-900 GHz) ranges for the title compound. Rotational constants for all the monosubstituted {sup 13}C and {sup 15}N isotopologues are additionally provided. Laboratory observations are supplemented with initial radioastronomical observations. Following analysis of an extensive dataset (>11000 rotational transitions), accurate ground-state molecular parameters are reported for the cis and gauche conformations of the molecule, including rotational constants, NQC parameters, and centrifugal distortion terms up to octic contributions. Molecular parameters have also been obtained for the two first excited states of the cis conformation, with a dataset of more than 3300 lines. The isotopic data allowed determining substitution and effective structures for the title compound. We did not detect allyl isocyanide either in the IRAM 30 m line survey of Orion KL or in the PRIMOS survey toward SgrB2. Nevertheless, we provided an upper limit to its column density in Orion KL.

  4. Compression of 1-mm-thick M9763 cellular silicone foam under...

    Office of Scientific and Technical Information (OSTI)

    Abstract not provided. Authors: Small, W. 1 + Show Author Affiliations Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States) Publication Date: 2014-11-13 OSTI ...

  5. How Cellulose Elongates - a QM/MM Study of the Molecular Mechanism...

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: biofuels (including algae and biomass), bio-inspired, membrane, carbon sequestration, materials and chemistry by ...

  6. MM-wave emission by magnetized plasma during sub-relativistic electron beam relaxation

    SciTech Connect (OSTI)

    Ivanov, I. A. Arzhannikov, A. V.; Burmasov, V. S.; Popov, S. S.; Postupaev, V. V.; Sklyarov, V. F.; Vyacheslavov, L. N.; Burdakov, A. V.; Sorokina, N. V.; Gavrilenko, D. E.; Kasatov, A. A.; Kandaurov, I. V.; Mekler, K. I.; Rovenskikh, A. F.; Trunev, Yu. A.; Kurkuchekov, V. V.; Kuznetsov, S. A.; Polosatkin, S. V.

    2015-12-15

    There are described electromagnetic spectra of radiation emitted by magnetized plasma during sub-relativistic electron beam in a double plasma frequency band. Experimental studies were performed at the multiple-mirror trap GOL-3. The electron beam had the following parameters: 70–110 keV for the electron energy, 1–10 MW for the beam power and 30–300 μs for its duration. The spectrum was measured in 75–230 GHz frequency band. The frequency of the emission follows variations in electron plasma density and magnetic field strength. The specific emission power on the length of the plasma column is estimated on the level 0.75 kW/cm.

  7. Microsoft Word - S05516_AttachD1_OrigLndfl_MM_Plan.doc

    Office of Legacy Management (LM)

    Rocky Flats Site Original Landfill Monitoring and Maintenance Plan September 2009 LMS/RFS/S05516-1.0 This page intentionally left blank LMS/RFS/S05516-1.0 U.S. Department of Energy Rocky Flats Site Original Landfill Monitoring and Maintenance Plan September 2009 This page intentionally left blank U.S. Department of Energy Original Landfill Monitoring and Maintenance Plan-Rocky Flats Site September 2009 Doc. No. S05516-1.0 Page i Contents

  8. The Ability of MM5 to Simulate Ice Clouds: Systematic Comparison...

    Office of Scientific and Technical Information (OSTI)

    between Simulated and Measured Fluxes and LidarRadar Profiles at SIRTA Atmospheric ... between Simulated and Measured Fluxes and LidarRadar Profiles at SIRTA Atmospheric ...

  9. QM/MM Studies of the Triosephosphate Isomerase-Catalyzed Reaction

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the alternative proton-transfer steps. Triosephosphate isomerase (TIM) is a dimeric enzyme that catalyzes the conversion between dihydroxyacetone phosphate (DHAP) and...

  10. The Ability of MM5 to Simulate Ice Clouds: Systematic Comparison...

    Office of Scientific and Technical Information (OSTI)

    is governed primarily by the equilibrium between their albedo and greenhouse effects. Both macrophysical and microphysical properties of ice clouds regulate this equilibrium. ...

  11. Feasibility study for a 10 MM GPY fuel ethanol plant, Brady Hot...

    Office of Scientific and Technical Information (OSTI)

    Legacy 151000* -- Geothermal Energy-- Direct Energy Utilization; 140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989); 090222 -- Alcohol Fuels-- ...

  12. Feasibility study for a 10-MM-GPY fuel ethanol plant, Brady Hot...

    Office of Scientific and Technical Information (OSTI)

    ... -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989); 140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989); 151000 -- Geothermal ...

  13. Cryostat design for the Superconducting Super Collider 50mm aperture dipole magnet

    SciTech Connect (OSTI)

    Nicol, T.H. ); Tsavalas, Y.P. . Medical Systems)

    1990-09-01

    The cryostat of an SSC dipole magnet consists of all magnet components except the cold mass assembly. It serves to support the cold mass accurately and reliably within the vacuum vessel, provide all required cryogenic piping, and to insulate the cold mass from heat radiated and conducted from the environment. It must function reliably during storage, shipping and handling, normal magnet operation, quenches, and seismic excitations and must be manufacturable at low cost. The major components of the cryostat are the vacuum vessel, thermal shields, multilayer insulation (MLI) system, cryogenic piping, interconnections, and suspension system. The overall design of a cryostat for superconducting accelerator magnets requires consideration of fluid flow, proper selection of materials for their thermal and structural performance at both ambient and operating temperature, and knowledge of the environment to which the magnets will be subjected over the course their 25 year expected life. This paper describes the design of the current SSC collider dipole magnet cryostat and includes discussions on the thermal, structural, and dynamic considerations involved in the development of each of the major systems. 7 refs., 1 fig., 2 tabs.

  14. Compression of 1-mm-thick M9763 cellular silicone foam under...

    Office of Scientific and Technical Information (OSTI)

    Research Org: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States) Sponsoring Org: USDOE Country of Publication: United States Language: English Subject: 42 ...

  15. Particle Image Velocimetry Measurements and Analysis of Bypass Data for a Scaled 6mm Gap

    SciTech Connect (OSTI)

    J.R. Wolf; T.E. Conder; R.R. Schultz

    2012-09-01

    The purpose of the fluid dynamics experiments in the MIR (Matched Index of-Refraction) flow system at Idaho National Laboratory (INL) is to develop benchmark databases for the assessment of Computational Fluid Dynamics (CFD) solutions of the momentum equations, scalar mixing, and turbulence models for the flow ratios between coolant channels and bypass gaps in the interstitial regions of typical prismatic standard fuel element (SFE) or upper reflector block geometries of typical Modular High-temperature Gas-cooled Reactors (MHTGR) in the limiting case of negligible buoyancy and constant fluid properties. The experiments will use optical techniques, primarily particle image velocimetry (PIV) in the INL Matched Index of Refraction (MIR) flow system.

  16. MHK ISDB/Sensors/0.2 mm Rainfall (2m cable) Smart Sensor | Open...

    Open Energy Info (EERE)

    (1) 0.01" Rain Gauge (2m cable) Smart Sensor ... further results Also made by Onset Computer Corporation HOBO RX3000 Remote Monitoring SystemHOBO RX3000 Remote Monitoring...

  17. New Strategies for 0.5 mm Resolution, High Sensitivity, Multi- Radionuclide Imaging

    SciTech Connect (OSTI)

    Levin, Craig S; Levin, Craig

    2015-02-28

    This project constitutes a 0.5-millimeter resolution radionuclide detector system built from CZT. (1) A novel dual-crystal photon detector module design with cross-strip electrode patterns was developed; (2) The module mechanical assembly was built; (3) A data acquisition (DAQ) chain for the module was produced; (4) A software tool was developed to incorporate novel time and energy measurement calibration techniques. (5) A small multi-detector prototype of the radionuclide imaging system was built from this module for system-level characterizations.

  18. Injection-locked composite lasers for mm-wave modulation : LDRD 117819 final report.

    SciTech Connect (OSTI)

    Wendt, Joel Robert; Vawter, Gregory Allen; Raring, James; Tauke-Pedretti, Anna; Alford, Charles Fred; Skogen, Erik J.; Chow, Weng Wah; Cajas, Florante G.; Overberg, Mark E.; Torres, David L.; Peake, Gregory Merwin

    2010-09-01

    This report summarizes a 3-year LDRD program at Sandia National Laboratories exploring mutual injection locking of composite-cavity lasers for enhanced modulation responses. The program focused on developing a fundamental understanding of the frequency enhancement previously demonstrated for optically injection locked lasers. This was then applied to the development of a theoretical description of strongly coupled laser microsystems. This understanding was validated experimentally with a novel 'photonic lab bench on a chip'.

  19. Zenith/Nadir Pointing mm-Wave Radars: Linear or Circular Polarization...

    Office of Scientific and Technical Information (OSTI)

    Sponsoring Org: USDOE SC OFFICE OF SCIENCE (SC) Country of Publication: United States Language: English Subject: 54 ENVIRONMENTAL SCIENCES Word Cloud More Like This Full Text ...

  20. Microsoft Word - S03965_FINAL 2014_PLF M&M Plan.docx

    Office of Legacy Management (LM)

    ... Casing, Sch 40-PVC, 2 in. ID. Hydrated Bentonite Pellets Concrete Seal Concrete Pad Filter ... Casing, Sch 40-PVC, 2 in. ID. Hydrated Bentonite Pellets Concrete Seal Concrete Pad ...

  1. Small object transporter. [Patent: for objects 0. 01 to 2. 00 mm dia

    DOE Patents [OSTI]

    Winkler, M.A.

    1980-05-21

    The disclosure relates to a small object transporter. Gas is passed through a conduit having a venturi. Small objects are picked up at a first location by a pickup tube in communication with the venturi and are forced out one end of the conduit at a desired second location.

  2. Pseudobond parameters for QM/MM studies involving nucleosides, nucleotides, and their analogs

    SciTech Connect (OSTI)

    Chaudret, Robin; Parks, Jerry M; Yang, Weitao

    2013-01-01

    In biological systems involving nucleosides, nucleotides, or their respective analogs, the ribose sugar moiety is the most common reaction site, for example, during DNA replication and repair. How- ever, nucleic bases, which comprise a sizable portion of nucleotide molecules, are usually unreactive during such processes. In quantum mechanical/molecular simulations of nucleic acid reactivity, it may therefore be advantageous to describe specific ribosyl or ribosyl phosphate groups quantum me- chanically and their respective nucleic bases with a molecular mechanics potential function. Here, we have extended the pseudobond approach to enable quantum mechanical/molecular mechanical simulations involving nucleotides, nucleosides, and their analogs in which the interface between the two subsystems is located between the sugar and the base, namely, the C(sp3) N(sp2) bond. The pseudobond parameters were optimized on a training set of 10 molecules representing several nu- cleotide and nucleoside bases and analogs, and they were then tested on a larger test set of 20 diverse molecules. Particular emphasis was placed on providing accurate geometries and electrostatic prop- erties, including electrostatic potential, natural bond orbital (NBO) and atoms in molecules (AIM) charges and AIM first moments. We also tested the optimized parameters on five nucleotide and nu- cleoside analogues of pharmaceutical relevance and a small polypeptide (triglycine). Accuracy was maintained for these systems, which highlights the generality and transferability of the pseudobond approach. 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4772182

  3. QM/MM Studies of the Triosephosphate Isomerase-Catalyzed Reaction

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    QER - Comment of Powder River Energy Corporation QER - Comment of Powder River Energy Corporation From: Mike Easley [mikee@precorp.coop] Sent: Wednesday, August 20, 2014 11:59 PM To: QERcomments Subject: Comment on the QER Public Meeting in Cheyenne, WY: Infrastructure Siting Attachment: Michael Easley CEO Powder River Energy Corporation - Statement.pdf Statement of Michael E Easley Panel 1-Electric Infrastructure Siting Best Regards, Mike Michael Easley CEO Powder River Energy Corporation

  4. SiO2 Fracture: Chemomechanics with a Machine Learning Hybrid QM/MM Scheme |

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Argonne Leadership Computing Facility Crack propagation in a two-dimensional bilayer of amorphous silicon dioxide modeled with a polarizable interatomic potential Crack propagation in a two-dimensional bilayer of amorphous silicon dioxide modeled with a polarizable interatomic potential. Atoms are colored by their local potential energy on a scale normalized from dark blue, lowest energy, to yellow, highest energy. Marco Caccin and Alessandro De Vita, King's College London; James Kermode,

  5. SiO2 Fracture: Chemomechanics with a Machine-Learning Hybrid QM/MM Scheme |

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Argonne Leadership Computing Facility Snapshot from a simulation of subcritical stress corrosion cracking in silica in a wet environment, of the kind that will be carried out at the quantum mechanical level during this INCITE project. Silicon atoms are shown in grey, oxygen in red and hydrogen in white. The nanoscale mechanisms underlying stress corrosion cracking remain unclear and can only be elucidated with these kinds of non-uniform precision simulations, which will allow quantitative

  6. Quantum, classical, and hybrid QM/MM calculations in solution: General implementation of the ddCOSMO linear scaling strategy

    SciTech Connect (OSTI)

    Lipparini, Filippo; Scalmani, Giovanni; Frisch, Michael J.; Lagardère, Louis; Stamm, Benjamin; Cancès, Eric; Maday, Yvon; Piquemal, Jean-Philip; Mennucci, Benedetta

    2014-11-14

    We present the general theory and implementation of the Conductor-like Screening Model according to the recently developed ddCOSMO paradigm. The various quantities needed to apply ddCOSMO at different levels of theory, including quantum mechanical descriptions, are discussed in detail, with a particular focus on how to compute the integrals needed to evaluate the ddCOSMO solvation energy and its derivatives. The overall computational cost of a ddCOSMO computation is then analyzed and decomposed in the various steps: the different relative weights of such contributions are then discussed for both ddCOSMO and the fastest available alternative discretization to the COSMO equations. Finally, the scaling of the cost of the various steps with respect to the size of the solute is analyzed and discussed, showing how ddCOSMO opens significantly new possibilities when cheap or hybrid molecular mechanics/quantum mechanics methods are used to describe the solute.

  7. Portable TXRF Spectrometer with 10{sup -11}g Detection Limit and Portable XRF Spectromicroscope with Sub-mm Spatial Resolution

    SciTech Connect (OSTI)

    Kunimura, Shinsuke; Hatakeyama, So; Sasaki, Nobuharu; Yamamoto, Takashi; Kawai, Jun

    2010-04-06

    A portable total reflection X-ray fluorescence (TXRF) spectrometer that we have developed is applied to trace elemental analysis of water solutions. Although a 5 W X-ray tube is used in the portable TXRF spectrometer, detection limits of several ppb are achieved for 3d transition metal elements and trace elements in a leaching solution of soils, a leaching solution of solder, and alcoholic beverages are detected. Portable X-ray fluorescence (XRF) spectromicroscopes with a 1 W X-ray tube and an 8 W X-ray tube are also presented. Using the portable XRF spectromicroscope with the 1 W X-ray tube, 93 ppm of Cr is detected with an about 700 {mu}m spatial resolution. Spatially resolved elemental analysis of a mug painted with blue, red, green, and white is performed using the two portable spectromicroscopes, and the difference in elemental composition at each paint is detected.

  8. 100 mm Engineered InP-on-Si Laminate Substrates for InP-based Multijunction Solar Cells

    SciTech Connect (OSTI)

    Atwater, Harry

    2012-06-25

    The project focused on fabrication of InP/Si laminate substrates as templates for growth of InGaAsP/InGaAs and InAlAs/InGaAsP/InGaAs multijunction solar cells. InP/Si template substrates were developed and used as templates for InGaAs solar growth. A novel feature of the program was development of the virtual substrate template, which enables a substrate to be formed with a lattice constant intermediate between those of GaAs and InP. Large-area virtual substrate templates were formed by transfer and bonding of dislocation free InGaAs films wafer onto silicon substrates.

  9. Absence of correlation between Sry polymorphisms and XY sex reversal caused by the M.m. domesticus Y chromosome

    SciTech Connect (OSTI)

    Carlisle, C.; Nagamine, C.M. [Vanderbilt Univ., School of Medicine, Nashville, TN (United States)] [Vanderbilt Univ., School of Medicine, Nashville, TN (United States); Winkinig, H.; Weichenhan, D. [Medizinische Universitaet Zu Luebeck (Germany)] [Medizinische Universitaet Zu Luebeck (Germany)

    1996-04-01

    Mus musculus domesticus Y chromosomes (Y{sup DOM} Chrs) vary in their ability to induce testes in the strain C57BL/6J. In severe cases, XY females develop (XY{sup DOM} sex reversal). To identify the molecular basis for the sex reversal, a 2.7-kb region of Sry, the testis-determining gene, was sequenced from Y{sup DOM} Chrs linked to normal testis determination, transient sex reversal, and severe sex reversal. Four mutations were identified. However, no correlation exists between these mutations and severity of XY{sup DOM} sex reversal. RT-PCR identified Sry transcripts in XY{sup DOM} sex-reversed fetal gonads at 11 d.p.c., the age when Sry is hypothesized to function. In addition, no correlation exists between XY{sup DOM} sex reversal and copy numbers of pSx1, a Y-repetitive sequence whose deletion is linked to XY sex reversal. We conclude that SRY protein variants, blockade of Sry transcription, and deletion of pSx1 sequences are not the underlying causes of XY{sup DOM} sex reversal. 63 refs., 6 figs., 6 tabs.

  10. Saturation of light – current characteristics of high-power lasers (λ = 1.0 – 1.1 mm) in pulsed regime

    SciTech Connect (OSTI)

    Veselov, D A; Kapitonov, V A; Pikhtin, N A; Lyutetskiy, A V; Nikolaev, D N; Slipchenko, S O; Sokolova, Z N; Shamakhov, V V; Shashkin, I S; Tarasov, I S

    2014-11-30

    Semiconductor lasers based on MOVPE-grown asymmetric separate-confinement heterostructures with a broadened waveguide and emitting in the wavelength range 1.0 – 1.1 μm are studied. It is found that the intensity of spontaneous emission from the active region increases with increasing pump current above the lasing threshold and that this is caused by a growth in the concentration of charge carriers in the active region due to the modal gain enhancement needed to compensate for the growing internal optical loss at high pulsed pump currents. It is shown that the increase in the internal optical loss with increasing pulsed pump current is one of the main reasons for saturation of the light – current characteristics of high-power semiconductor lasers. (lasers)

  11. Feasibility study for a 10 MM GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume II. Geothermal resource, agricultural feedstock, markets and economic viability

    SciTech Connect (OSTI)

    Not Available

    1980-09-01

    The issues of the geothermal resource at Brady's Hot Springs are dealt with: the prospective supply of feedstocks to the ethanol plant, the markets for the spent grain by-products of the plant, the storage, handling and transshipment requirements for the feedstocks and by-products from a rail siding facility at Fernley, the probable market for fuel ethanol in the region, and an assessment of the economic viability of the entire undertaking.

  12. Feasibility study for a 10-MM-GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume 1. Process and plant design

    SciTech Connect (OSTI)

    Not Available

    1980-09-01

    An investigation was performed to determine the technical and economic viability of constructing and operating a geothermally heated, biomass, motor fuel alcohol plant at Brady's Hot Springs. The results of the study are positive, showing that a plant of innovative, yet proven design can be built to adapt current commerical fermentation-distillation technology to the application of geothermal heat energy. The specific method of heat production from the Brady's Hot Spring wells has been successful for some time at an onion drying plant. Further development of the geothermal resource to add the capacity needed for an ethanol plant is found to be feasible for a plant sized to produce 10 million gallons of motor fuel grade ethanol per year. A very adequate supply of feedgrains is found to be available for use in the plant without impact on the local or regional feedgrain market. The effect of diverting supplies from the animal feedlots in Northern Nevada and California will be mitigated by the by-product output of high-protein feed supplements that the plant will produce. The plant will have a favorable impact on the local farming economies of Fallon, Lovelock, Winnemucca and Elko, Nevada. It will make a positive and significant socioeconomic contribution to Churchill County, providing direct employment for an additional 61 persons. Environmental impact will be negligible, involving mostly a moderate increase in local truck traffic and railroad siding activity. The report is presented in two volumes. Volume 1 deals with the technical design aspects of the plant. The second volume addresses the issue of expanded geothermal heat production at Brady's Hot Springs, goes into the details of feedstock supply economics, and looks at the markets for the plant's primary ethanol product, and the markets for its feed supplement by-products. The report concludes with an analysis of the economic viability of the proposed project.

  13. Artificial neural network modeling of the spontaneous combustion occurring in the industrial-scale coal stockpiles with 10-18 mm coal grain sizes

    SciTech Connect (OSTI)

    Ozdeniz, A.H.; Yilmaz, N.

    2009-07-01

    Companies consuming large amounts of coal should work with coal stocks in order to not face problems due to production delays. The industrial-scale stockpiles formed for the aforementioned reasons cause environmental problems and economic losses for the companies. This study was performed in a coal stock area of a large company in Konya, which uses large amounts of coal in its manufacturing units. The coal stockpile with 5 m width, 10 m length, 3 m height, and having 120 tons of weight was formed in the coal stock area of the company. The inner temperature data of the stockpile was recorded by 17 temperature sensors placed inside the stockpile at certain points. In order to achieve this goal, the electrical signal conversion of temperatures sensed by 17 temperature sensors placed in certain points inside the coal stockpile, the transfer of these electrical signals into computer media by using analog-digital conversion unit after applying necessary filtration and upgrading processes, and the record of these information into a database in particular time intervals are provided. Additionally, the data relating to the air temperature, air humidity, atmospheric pressure, wind velocity, and wind direction that are the parameters affecting the coal stockpile were also recorded. Afterwards, these measurement values were used for training and testing of an artificial neural network model. Comparison of the experimental and artificial neural network results, accuracy rates of training and testing were found to be 99.5% and 99.17%, respectively. It is shown that possible coal stockpile behavior with this artificial neural network model is powerfully estimated.

  14. 5000 groove/mm multilayer-coated blazed grating with 33percent efficiency in the 3rd order in the EUV wavelength range

    SciTech Connect (OSTI)

    Advanced Light Source; Voronov, Dmitriy L.; Anderson, Erik; Cambie, Rossana; Salmassi, Farhad; Gullikson, Eric; Yashchuk, Valeriy; Padmore, Howard; Ahn, Minseung; Chang, Chih-Hao; Heilmann, Ralf; Schattenburg, Mark

    2009-07-07

    We report on recent progress in developing diffraction gratings which can potentially provide extremely high spectral resolution of 105-106 in the EUV and soft x-ray photon energy ranges. Such a grating was fabricated by deposition of a multilayer on a substrate which consists ofa 6-degree blazed grating with a high groove density. The fabrication of the substrate gratings was based on scanning interference lithography and anisotropic wet etch of silicon single crystals. The optimized fabrication process provided precise control of the grating periodicity, and the grating groove profile, together with very short anti-blazed facets, and near atomically smooth surface blazed facets. The blazed grating coated with 20 Mo/Si bilayers demonstrated a diffraction efficiency in the third order as high as 33percent at an incidence angle of 11? and wavelength of 14.18 nm.

  15. Factors influencing the sustained-performance capabilities of 155-mm howitzer sections in simulated conventional and chemical warfare environments. Technical report

    SciTech Connect (OSTI)

    Rauch, T.M.; Banderet, L.E.; Tharion, W.J.; Munro, I.; Lussier, A.R.

    1986-04-01

    Factors that limit the performance capabilities of sustained artillery operations in simulated conventional and chemical warfare environments were studied. The results show that perceptions of psychological (mental) fatigue, rather than perceptions of muscular fatigue, were primary factors affecting sustained artillery performance. Furthermore, variations in these psychological states were correlated with artillery task performance during the period. In the simulated chemical warfare environment, extreme symptom and mood changes resulted in medical casualties, combat ineffectiveness, and early termination of all testing. Significant perosnality differences existed between casualties and survivors. The majority of casualties voluntarily terminated operational duties because of intense symptoms associated with wearing the chemical protective mask and clothing system. These symptoms were manifestations of respiratory and thermal stress.

  16. Hydrodynamic study of plasma amplifiers for soft-x-ray lasers: A transition in hydrodynamic behavior for plasma columns with widths ranging from 20 {mu}m to 2 mm

    SciTech Connect (OSTI)

    Oliva, Eduardo; Zeitoun, Philippe; Sebban, Stephan; Velarde, Pedro; Portillo, David; Fajardo, Marta; Cassou, Kevin; Ros, David; Le Pape, Sebastien

    2010-11-15

    Plasma-based seeded soft-x-ray lasers have the potential to generate high energy and highly coherent short pulse beams. Due to their high density, plasmas created by the interaction of an intense laser with a solid target should store the highest amount of energy density among all plasma amplifiers. Our previous numerical work with a two-dimensional (2D) adaptive mesh refinement hydrodynamic code demonstrated that careful tailoring of plasma shapes leads to a dramatic enhancement of both soft-x-ray laser output energy and pumping efficiency. Benchmarking of our 2D hydrodynamic code in previous experiments demonstrated a high level of confidence, allowing us to perform a full study with the aim of the way for 10-100 {mu}J seeded soft-x-ray lasers. In this paper, we describe in detail the mechanisms that drive the hydrodynamics of plasma columns. We observed transitions between narrow plasmas, where very strong bidimensional flow prevents them from storing energy, to large plasmas that store a high amount of energy. Millimeter-sized plasmas are outstanding amplifiers, but they have the limitation of transverse lasing. In this paper, we provide a preliminary solution to this problem.

  17. Poster — Thur Eve — 64: Preliminary investigation of arc configurations for optimal sparing of normal tissue in hypofractionated stereotactic radiotherapy (HF-SRT) of multiple brain metastases using a 5mm interdigitating micro-multileaf collimator

    SciTech Connect (OSTI)

    Leavens, C; Wronski, M; Lee, YK; Ruschin, M; Soliman, H; Sahgal, A

    2014-08-15

    Purpose: To evaluate normal tissue sparing in intra-cranial HF-SRT, comparing various arc configurations with the Synergy Beam Modulator (SynBM) and Agility linacs, the latter incorporating leaf interdigitation and backup jaws. Methods: Five patients with multiple brain metastases (BMs), (5 BMs (n=2), 3 BMs (n=3)) treated with HF-SRT using 25 Gy (n=2) or 30 Gy (n=3) in 5 fractions, were investigated. Clinical treatment plans used the SynBM. Each patient was retrospectively re-planned on Agility, employing three planning strategies: (A) one isocenter and dedicated arc for each BM; (B) a single isocenter, centrally placed with respect to BMs; (C) the isocenter and arc configuration used in the SynBM plan, where closely spaced (<5cm) BMs used a dedicated isocenter and arcs. Agility plans were normalized for PTV coverage and heterogeneity. Results and Conclusion: Strategy A obtained the greatest improvements over the SynBM plan, where the maximum OAR dose, and mean dose to normal brain (averaged for all patients) were reduced by 55cGy and 25cGy, respectively. Strategy B was limited by having a single isocenter, hence less jaw shielding and increased MLC leakage. The maximum OAR dose was reduced by 13cGy, however mean dose to normal brain increased by 84cGy. Strategy C reduced the maximum OAR dose and mean dose to normal brain by 32cGy and 9cGy, respectively. The results from this study indicate that, for intra-cranial HF-SRT of multiple BMs, Agility plans are equal or better than SynBM plans. Further planning is needed to investigate dose sparing using Strategy A and the SynBM.

  18. Acoustic emission during the ferroelectric transition Pm3{sup ¯}m to P4mm in BaTiO{sub 3} and the ferroelastic transition R3{sup ¯}m-C2/c in Pb{sub 3}(PO{sub 4}){sub 2}

    SciTech Connect (OSTI)

    Salje, E. K. H.; Dul'kin, E.; Roth, M.

    2015-04-13

    Acoustic emission (AE) spectroscopy without frequency filtering (∼broadband AE) and moderate time integration is shown to be sensitive enough to allow the investigation of subtle nano-structural changes in ferroelectric BaTiO{sub 3} and ferroelastic Pb{sub 3}(PO{sub 4}){sub 2}. AE signals during weak phase transitions are compatible with avalanche statistics as observed previously in large-strain systems. While the data are too sparse to determine avalanche exponents, they are well suited to determine other thermodynamic parameters such as transition temperatures and critical stresses.

  19. High Strength, Dissimilar Alloy Aluminum Tailor-Welded Blanks

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... 2000 RPM, 332C 5mmin, 2500 RPM, 341C 6mmin, 2500 RPM, 318C Technical ... applied 2 mm to 1 mm thicknesses 1 corner with 50 mm radius 2 corners with 60 mm ...

  20. Accuracy of Ultrasound-Based (BAT) Prostate-Repositioning: A Three-Dimensional On-Line Fiducial-Based Assessment With Cone-Beam Computed Tomography

    SciTech Connect (OSTI)

    Boda-Heggemann, Judit Koehler, Frederick Marc; Kuepper, Beate; Wolff, Dirk; Wertz, Hansjoerg; Mai, Sabine; Hesser, Juergen; Lohr, Frank; Wenz, Frederik

    2008-03-15

    Purpose: To assess the accuracy of ultrasound-based repositioning (BAT) before prostate radiation with fiducial-based three-dimensional matching with cone-beam computed tomography (CBCT). Patients and Methods: Fifty-four positionings in 8 patients with {sup 125}I seeds/intraprostatic calcifications as fiducials were evaluated. Patients were initially positioned according to skin marks and after this according to bony structures based on CBCT. Prostate position correction was then performed with BAT. Residual error after repositioning based on skin marks, bony anatomy, and BAT was estimated by a second CBCT based on user-independent automatic fiducial registration. Results: Overall mean value (MV {+-} SD) residual error after BAT based on fiducial registration by CBCT was 0.7 {+-} 1.7 mm in x (group systematic error [M] = 0.5 mm; SD of systematic error [{sigma}] = 0.8 mm; SD of random error [{sigma}] = 1.4 mm), 0.9 {+-} 3.3 mm in y (M = 0.5 mm, {sigma} = 2.2 mm, {sigma} = 2.8 mm), and -1.7 {+-} 3.4 mm in z (M = -1.7 mm, {sigma} = 2.3 mm, {sigma} = 3.0 mm) directions, whereas residual error relative to positioning based on skin marks was 2.1 {+-} 4.6 mm in x (M = 2.6 mm, {sigma} = 3.3 mm, {sigma} = 3.9 mm), -4.8 {+-} 8.5 mm in y (M = -4.4 mm, {sigma} = 3.7 mm, {sigma} = 6.7 mm), and -5.2 {+-} 3.6 mm in z (M = -4.8 mm, {sigma} = 1.7 mm, {sigma} = 3.5mm) directions and relative to positioning based on bony anatomy was 0 {+-} 1.8 mm in x (M = 0.2 mm, {sigma} = 0.9 mm, {sigma} = 1.1 mm), -3.5 {+-} 6.8 mm in y (M = -3.0 mm, {sigma} = 1.8 mm, {sigma} = 3.7 mm), and -1.9 {+-} 5.2 mm in z (M = -2.0 mm, {sigma} = 1.3 mm, {sigma} = 4.0 mm) directions. Conclusions: BAT improved the daily repositioning accuracy over skin marks or even bony anatomy. The results obtained with BAT are within the precision of extracranial stereotactic procedures and represent values that can be achieved with several users with different education levels. If sonographic visibility is insufficient

  1. Slide 1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the end of delithiation Linda Y. Lim et. al., submitted to Chem. Mater. BL 11-3: Watching Batteries In-operando 2 mm 2 mm 2 mm 2 mm 2 mm 0.4 mms 1.6 mms 2.8 mms 4 mms 8 mms...

  2. Sandia National Laboratories: Research: Facilities: Technology...

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    Available Launchers 100 mm compressed gas gun (velocities to 1 kms) 100 mm compressed light gas gun for oblique impacts (velocities to 400ms) 89 mm powder gun (0.5 - 2.3 kms) 30 ...

  3. Microsoft PowerPoint - NEAC CASL Presentation 12-10-14 v3.pptx

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    * 204 pins per assembly Fuel Pins * 300-400 pellets stacked within 12' high x 0.61 mm thick Zr-4 cladding tube Fuel Pellets * 9.29 mm diameter x 10.0 mm high Fuel ...

  4. Bremsstrahlung and K(alpha) fluorescence measurements for inferring...

    Office of Scientific and Technical Information (OSTI)

    The Bremsstrahlung and K-shell emission from 1 mm x 1 mm x 1 mm planar targets irradiated ... discrimination up to 500 keV. K-shell emission was measured using a single photon ...

  5. RussiaLANLV3-web.indd

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Heterogeneous decomposition Radius, mm 2 1 0 Radius, mm 2 1 0 Radius, mm Aluminum Copper Modifi ed for the Web The task will be performed in two stages. In the fi rst stage (fi rst ...

  6. High Temperature Fuel Cell (Phosphoric Acid) Manufacturing R...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Net Shape Flow Field Dry Film Thickness 2.7 mm 0.7 mm 1.7 mm Density 1.4 gmml Density ... Removes CO from anode inlet gas AMMONIA SCRUBBER Removes ammonia from fuel EXHAUST ...

  7. Small Business Vouchers: Introduction to Lygos

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (MM) Small Business Voucher helps minimize the "valley of death" for industrial biotechnology: process scaleup New Plant Construction Contract Production Cost >30MM 10-50K...

  8. PowerPoint Presentation

    Office of Environmental Management (EM)

    ... Configuration Stainless Steel Frit * Approximately 6 grams total * 10 Pellets - Right cylinder pellets - 6 mm diameter x 4 mm tall * Stacked configuration Effect of H 2 ...

  9. Beamline 4-ID-D | Advanced Photon Source

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Publications XSD-MM Home MM Advisory Committees FAQs Beamline Info Instrumentation Optics Software Magnet Materials Internal Useful Links Current APS status ESAF System GUP...

  10. ARM - Publications: Science Team Meeting Documents

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Atmospheric Research Mesoscale Model 5 (MM5), in particular the shortwave downwelling (SW) flux calculations, is examined in this paper. Selected quantities output from the MM5...

  11. Millimeter Wave Sensor Technologies Track Biometrics; Detect...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Argonne's millimeter wave (mmW) sensor technologies measure a wide range of threat ... Argonne's millimeter wave (mmW) sensor technologies measure a wide range of threat ...

  12. Microsoft PowerPoint - KTH_pres - Leif Kari.pptx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Nanofabrication Molec. & Cell Biology Laser- and Non-Linear Optics 100 mm 1 mm ... H. Anglart) Reactor physics: Generation IV reactors for transmutation of nuclear waste. (Prof. J. ...

  13. Measurement

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    fast electron distribution using a flexible, high time resolution hard x-ray spectrometer R. O'Connell, D. J. Den Hartog, and C. B. Forest University of Wisconsin-Madison, Madison, Wisconsin 53706 R. W. Harvey CompX, California ͑Presented on 10 July 2002͒ A 16 spatial channel hard x-ray ͑HXR͒ diagnostic using solid state CdZnTe detectors ͑active area 10 mmϫ10 mmϫ2 mm, 50 mmϫ20 mmϫ20 mm packaged͒ has recently been installed on the Madison Symmetric Torus ͑MST͒ reversed field pinch to

  14. SU-E-J-171: Surface Imaging Based Intrafraction Motion Assessments for Whole Brain Radiotherapy

    SciTech Connect (OSTI)

    Wiant, D; Vanderstraeten, C; Maurer, J; Pursley, J; Terrell, J; Sintay, B

    2014-06-01

    Purpose: To quantify and characterize intrafraction motion for whole brain radiotherapy treatments in open face masks using 3D surface imaging. Methods: Fifteen whole brain patients were monitored with 3D surface imaging over a total of 202 monitoring sessions. Mean translations and rotations were calculated over each minute, each session, and over all sessions combined. The percentage of each session that the root mean square (RMS) of the linear translations were outside of 2 mm, 3 mm, 4 mm, and 5 mm were determined for each patient. Correlations between mean translations per minute and time and between standard deviation per minute and time were evaluated using Pearson's r value. Results: The mean RMS translation averaged over all patients was 1.45 mm +/− 1.52 mm. The patients spent an average of 18%, 10%, 6%, and 3% of the monitoring time outside of 2 mm, 3 mm, 4 mm, and 5 mm RMS tolerances, respectively. The RMS values averaged over all patients were 1.31 mm +/− 0.98 mm, 1.52 +/- 1.04, and 1.30 mm +/− 0.71 mm over the 1th, 5th, and 10th minutes of monitoring, respectively. Neither, the RMS values (p = 0.15) or the standard deviations of the RMS values (p = 0.16) showed significant correlations with time. Conclusion: The patients were positioned within 2 mm of isocenter, which was the initial set-up tolerance, for the majority of their treatments. The average position changed by < 0.3 mm over 10 minutes of monitoring. Short term movements, reflected by the standard deviations, where on the order of 1 mm. This immobilization system provides adequate immobilization over a course of treatment for whole brain radiotherapy. This system may also be suitable for head and neck or stereotactic radiosurgery treatments as well.

  15. Comparison of Materials for Use in the Precision Grinding of...

    Office of Scientific and Technical Information (OSTI)

    diamond turning and grinding platform was used to grind surfaces in 40mm diameter substrates sapphire and silicon carbide substrates and 200 mm BK7 glass substrates using diamond ...

  16. X:\\ARM_19~1\\P259-271.WPD

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    factors in dBZe. a) Session Papers 261 c) d) Figure 1 (cont). c) 3.2-mm CPRS vertical Doppler velocity; d) 9.1-mm CPRS linear depolarization ratios. Session Papers 262...

  17. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    to be used in a plastic scintillation detector (PSD). Methods: The PSD consists of a 1 mm diameter, 10 mm long plastic scintillation fiber (BCF-60) which is optically coupled to...

  18. Charpy impact test results on five materials and NIST verification...

    Office of Scientific and Technical Information (OSTI)

    test results on five materials and NIST verification specimens using instrumented 2-mm and 8-mm strikers Citation Details In-Document Search Title: Charpy impact test results on ...

  19. Tritium R&D at AECL Selected Topics

    Office of Environmental Management (EM)

    ... within 5C * Sample: * 10 mm dia. * 50 mm lg. * HT flow inner * Swept annulus * Measure ... UNRESTRICTED ILLIMIT Direct Tritium battery Immobilized Tritium Layers 16 Ti TiT 2 ...

  20. MAPPER - Sheet1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    .13 204.66 RSF - DRAWN OF INCHES mm mm IN REV D 1 INITIAL ISSUE x x.xxx x.xx SIDNEY W. BARNES RESEARCH LABORATORY DESCRIPTION DATE ZONE 11 - .0005 .013 DEPT. OF...

  1. ARM - Datastreams - aospsap3w

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ) Aerosol light absorption coefficient, nominal red wavelength at dry or reference RH 1Mm BaR ( time ) Absorption Coefficient Red, 3 wavelength PSAP, 1 um size cut 1Mm ...

  2. Decision Summaries | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    January 16, 2014 Summary of Decisions - December 30, 2013 - January 3, 2014 Decisions were issued on: - Privacy Act Appeal January 10, 2014 Summary of Decisions - MM DD YYYY - MM...

  3. Beamline 8.3.2

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cooke PCO4000 CCD with scintillator Beam size at sample 35 x 5 mm Sample format Universal. 100m - 70mm Sample environment Atmosphere Experimental techniques Hard X-ray...

  4. Heating Profiles Derived From Cm-wavelength Radar During TWP...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    heating Dry monsoon (10.5 mm day -1 ) - Weaker events with a large shallow convection component and lower level heating Break period (8.5 mm day -1 ) - Mostly deep convection...

  5. News Item

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cs (Spherical aberration) 2.2 mm Cc (Chromatic aberration) 2.2 mm Specimen Stage Double tilt holder angle 70 deg 30 deg Cryo double tilt holder angle 49 deg 30 deg...

  6. Silicon Photomultiplier Arrays at TJNAF| U.S. DOE Office of Science...

    Office of Science (SC) Website

    A small 18x18x5 mm3 array of pixilated LYSO scintillator was used as test light source. The 1x1 mm2 size of the pixels were known to be a challenging system to resolve ...

  7. News Item

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    200 kV Spherical Aberration Cs: 1.2mm Chromatic Aberration Cc: 1.2mm Detectors Oxford INCA energy dispersive X-ray detector with energy resolution of 136eV for Mn k-alpha...

  8. Microsoft Word - manuscript_06_a4.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... The data collected at an impact parameter of 0.0 mm corresponding to the geometric center of the device show little shift and therefore low magnetic field. At the -11.3 mm impact ...

  9. FY05 LDRD Final Report Mapping Phonons at High-pressure (Technical...

    Office of Scientific and Technical Information (OSTI)

    Crystals of 60-80 mm diameter and 20 mm thickness were prepared from a large ingot, obtained from Ames Lab, using laser cutting, micro-mechanical and chemical polishing techniques. ...

  10. Beamline 4-ID-C | Advanced Photon Source

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    C 4-ID-C Home Recent Publications XSD-MM Home MM Advisory Committees FAQs Beamline Info Instrumentation Magnet Materials Internal Useful Links Current APS status ESAF System GUP...

  11. Report for WIPP UG Sample #3, R15C5 (9/3/14)

    Office of Environmental Management (EM)

    ... to 95% A in 3 min, hold for 10 min Flow rate: 200 Lmin Column brandphase: Waters Atlantis T3C18 Column Length x ID x Particle size: 150 mm x 2.1 mm x 3 m Column ...

  12. Crowdsourced Microfinance for Energy Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... (TBD) 3) Goldman Sachs UIG (5mm min; 20%) 4) Citi Community Capital (5mm; 10%) 5) Brooklyn Co-op FCU (TBD) 13 Project Integration and Collaboration Project Integration: ...

  13. MCNP Comparison With Point Source Measurements From a Portable...

    Office of Scientific and Technical Information (OSTI)

    and 37 cm 16 cm 32 cm in overall size It utilizes a P-type 50 mm diameter and 30 mm height coaxial HPGe detector and has more than 3 hours of battery life when fully charged. ...

  14. RECOVERY ACT: Geologic Sequestration Training and Research

    Office of Scientific and Technical Information (OSTI)

    ... AL Power Co., 54.5 mm-long plug Permeability N 2 31.6 mdarcy Steady flow Lewis Smith Dam Sandstone Hartselle Sandstone 1 Parallel I 21.2 mm diameter Parallel a Porosity ...

  15. SU-E-T-183: Feasibility of Extreme Dose Escalation for Glioblastoma...

    Office of Scientific and Technical Information (OSTI)

    Original VMAT plans were created with 2 to 4 coplanar or non-coplanar arcs using 3 mm hi-res MLC. The 4 optimization, using 5 mm MLC, selected and inverse optimized 30 beams...

  16. ARM - Datastreams - noaaaos

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    ) Backscattered radiation Aerosol backwards-hemispheric light scattering coefficient, Ref. Humidograph nephelometer blue channel, 1 um particle diameter 1Mm...

  17. UM-ASU Final Report

    Office of Scientific and Technical Information (OSTI)

    ... The fast release of U after FeS depletion may be due to (1) ... sediment packed in column reactors. 5.1 Bioreduction For the ... (1 mM), magnesium (1 mM), sodium (8 mM), potassium (0.27 ...

  18. Design and performance of a large area neutron sensitive anger camera

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Visscher, Theodore; Montcalm, Christopher A.; Donahue, Jr., Cornelius; Riedel, Richard A.

    2015-05-21

    We describe the design and performance of a 157mm x 157mm two dimensional neutron detector. The detector uses the Anger principle to determine the position of neutrons. We have verified FWHM resolution of < 1.2mm with distortion < 0.5mm on over 50 installed Anger Cameras. The performance of the detector is limited by the light yield of the scintillator, and it is estimated that the resolution of the current detector could be doubled with a brighter scintillator. Data collected from small (<1mm3) single crystal reference samples at the single crystal instrument TOPAZ provide results with low Rw(F) values

  19. Propagation or failure of detonation across an air gap in an LX-17 column: continuous time-dependent detonation or shock speed using the Embedded Fiber Optic (EFO) technique

    SciTech Connect (OSTI)

    Hare, D E; Chandler, J B; Compton, S M; Garza, R G; Grimsley, D A; Hernandez, A; Villafana, R J; Wade, J T; Weber, S R; Wong, B M; Souers, P C

    2008-01-16

    The detailed history of the shock/detonation wave propagation after crossing a room-temperature-room-pressure (RTP) air gap between a 25.4 mm diameter LX-17 donor column and a 25.4 mm diameter by 25.4 mm long LX-17 acceptor pellet is investigated for three different gap widths (3.07, 2.08, and 0.00 mm) using the Embedded Fiber Optic (EFO) technique. The 2.08 mm gap propagated and the 3.07 mm gap failed and this can be seen clearly and unambiguously in the EFO data even though the 25.4 mm-long acceptor pellet would be considered quite short for a determination by more traditional means such as pins.

  20. Treating electrostatics with Wolf summation in combined quantum mechanical and molecular mechanical simulations

    SciTech Connect (OSTI)

    Ojeda-May, Pedro; Pu, Jingzhi

    2015-11-07

    The Wolf summation approach [D. Wolf et al., J. Chem. Phys. 110, 8254 (1999)], in the damped shifted force (DSF) formalism [C. J. Fennell and J. D. Gezelter, J. Chem. Phys. 124, 234104 (2006)], is extended for treating electrostatics in combined quantum mechanical and molecular mechanical (QM/MM) molecular dynamics simulations. In this development, we split the QM/MM electrostatic potential energy function into the conventional Coulomb r{sup −1} term and a term that contains the DSF contribution. The former is handled by the standard machinery of cutoff-based QM/MM simulations whereas the latter is incorporated into the QM/MM interaction Hamiltonian as a Fock matrix correction. We tested the resulting QM/MM-DSF method for two solution-phase reactions, i.e., the association of ammonium and chloride ions and a symmetric SN{sub 2} reaction in which a methyl group is exchanged between two chloride ions. The performance of the QM/MM-DSF method was assessed by comparing the potential of mean force (PMF) profiles with those from the QM/MM-Ewald and QM/MM-isotropic periodic sum (IPS) methods, both of which include long-range electrostatics explicitly. For ion association, the QM/MM-DSF method successfully eliminates the artificial free energy drift observed in the QM/MM-Cutoff simulations, in a remarkable agreement with the two long-range-containing methods. For the SN{sub 2} reaction, the free energy of activation obtained by the QM/MM-DSF method agrees well with both the QM/MM-Ewald and QM/MM-IPS results. The latter, however, requires a greater cutoff distance than QM/MM-DSF for a proper convergence of the PMF. Avoiding time-consuming lattice summation, the QM/MM-DSF method yields a 55% reduction in computational cost compared with the QM/MM-Ewald method. These results suggest that, in addition to QM/MM-IPS, the QM/MM-DSF method may serve as another efficient and accurate alternative to QM/MM-Ewald for treating electrostatics in condensed-phase simulations of chemical

  1. Tubular solid oxide fuel cells with porous metal supports and ceramic interconnections

    DOE Patents [OSTI]

    Huang, Kevin; Ruka, Roswell J.

    2012-05-08

    An intermediate temperature solid oxide fuel cell structure capable of operating at from 600.degree. C. to 800.degree. C. having a very thin porous hollow elongated metallic support tube having a thickness from 0.10 mm to 1.0 mm, preferably 0.10 mm to 0.35 mm, a porosity of from 25 vol. % to 50 vol. % and a tensile strength from 700 GPa to 900 GPa, which metallic tube supports a reduced thickness air electrode having a thickness from 0.010 mm to 0.2 mm, a solid oxide electrolyte, a cermet fuel electrode, a ceramic interconnection and an electrically conductive cell to cell contact layer.

  2. Respiration-Correlated Image Guidance Is the Most Important Radiotherapy Motion Management Strategy for Most Lung Cancer Patients

    SciTech Connect (OSTI)

    Korreman, Stine, E-mail: korreman@ruc.dk [Department of Science, Systems and Models, Roskilde University, Roskilde (Denmark); Department of Radiation Oncology, The Finsen Centre, Rigshospitalet, Copenhagen (Denmark); Niels Bohr Institute, University of Copenhagen, Copenhagen (Denmark); Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison (United States); Persson, Gitte; Nygaard, Ditte [Department of Radiation Oncology, The Finsen Centre, Rigshospitalet, Copenhagen (Denmark); Brink, Carsten [Laboratory of Radiation Physics, Odense University Hospital, Odense (Denmark); Faculty of Health Sciences, University of Southern Denmark, Odense (Denmark); Juhler-Nottrup, Trine [Department of Oncology, Herlev Hospital, Copenhagen (Denmark)

    2012-07-15

    Purpose: The purpose of this study was to quantify the effects of four-dimensional computed tomography (4DCT), 4D image guidance (4D-IG), and beam gating on calculated treatment field margins in a lung cancer patient population. Materials and Methods: Images were acquired from 46 lung cancer patients participating in four separate protocols at three institutions in Europe and the United States. Seven patients were imaged using fluoroscopy, and 39 patients were imaged using 4DCT. The magnitude of respiratory tumor motion was measured. The required treatment field margins were calculated using a statistical recipe (van Herk M, et al. Int J Radiat Oncol Biol Phys 2000;474:1121-1135), with magnitudes of all uncertainties, except respiratory peak-to-peak displacement, the same for all patients, taken from literature. Required margins for respiratory motion management were calculated using the residual respiratory tumor motion for each patient for various motion management strategies. Margin reductions for respiration management were calculated using 4DCT, 4D-IG, and gated beam delivery. Results: The median tumor motion magnitude was 4.4 mm for the 46 patients (range 0-29.3 mm). This value corresponded to required treatment field margins of 13.7 to 36.3 mm (median 14.4 mm). The use of 4DCT, 4D-IG, and beam gating required margins that were reduced by 0 to 13.9 mm (median 0.5 mm), 3 to 5.2 mm (median 5.1 mm), and 0 to 7 mm (median 0.2 mm), respectively, to a total of 8.5 to 12.4 mm (median 8.6 mm). Conclusion: A respiratory management strategy for lung cancer radiotherapy including planning on 4DCT scans and daily image guidance provides a potential reduction of 37% to 47% in treatment field margins. The 4D image guidance strategy was the most effective strategy for >85% of the patients.

  3. Testing of hollow clay tile masonry prisms

    SciTech Connect (OSTI)

    Jones, W.D.; Butala, M.B.

    1993-10-15

    This paper presents test results of 610-mm wide (24-in.) by 1219-mm high (48-in.) by 203-or 330-mm (8- or 13-in.) thick prisms constructed of hollow clay tiles. Three prisms were extracted fro existing hollow clay title walls and 69 were constructed in laboratories at The University of Tennessee and the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. Modulus of Elasticity, E, and compressive strength f{prime}{sub m} were calculated from the results.

  4. Nd:YAG pulsed laser output at 1. 064, 1. 073, 1. 061 and 1. 052 micrometers singlet spectral lines

    SciTech Connect (OSTI)

    Not Available

    1981-11-01

    Single spectral lines at 1.064, 1.073, 1.061, and 1.052 micron were obtained respectively by inserting into the cavity the uncoated (or coated) solid etalons of 0.1 mm or both 0.1 mm and 0.14 mm thickness and appropriately controlling the gain of Nd:YAG laser and tilted angles of the etalons. An output cavity mirror which has different reflectivities for different wavelengths was also developed.

  5. Hanford Site Beryllium Questionnaire Affected Worker Questionnaire

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Beryllium Questionnaire Affected Worker Questionnaire Page 1 of 15 Hanford Site Beryllium Interview Questionnaire Affected Worker Interview Date (MM/YYYY) Name (Last, First, MI) HID# DOB (MM/YYYY) Contractor/Employer Home Address City State Zip Code Home Phone Number ( ) - Alternate Phone Number ( ) - Hanford Site Beryllium Questionnaire Affected Worker Questionnaire Page 2 of 15 Hanford Work History Timeline Original Hire Date for the Hanford Site: (MM/YYYY) Contractor: Job Title: Bargaining

  6. Available for Checkout Equipment Inventory | Sample Preparation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Laboratories Available for Checkout Equipment Inventory « Equipment Resources Title Description Agate Mortar & Pestle Sets Agate mortar & pestle sets (100mm, 65 mm, & 50mm sizes). Buchi V-700 Vacuum Pump & condenser Chemically resistant vacuum pump, flow rate 1.8m^3/h, ultimate vacuum less than 10mbar. The secondary condenser (Buchi 047180) is a complete module with insulation and 500mL receiving flask. Campden Instruments Vibrating Manual Tissue Cutter HA 752 Campden

  7. NNSA PACKAGE CERTIFICATION ENGINEER QUALIFICATION STANDARD REFERENCE...

    Office of Environmental Management (EM)

    ... low dispersible material m meter min minute mm millimeter ... An interstate system bypass or interstate system beltway ... (gas fired or electric), and radiant heat lamp testing. ...

  8. Comment permalink | OSTI, US Dept of Energy Office of Scientific...

    Office of Scientific and Technical Information (OSTI)

    Qualification -- Final Technical Report Robert C. Voigt (2004) 946 Charpy impact test results on five materials and NIST verification specimens using instrumented 2-mm and ...

  9. March 2016 Most Viewed Documents for Materials | OSTI, US Dept...

    Office of Scientific and Technical Information (OSTI)

    Qualification -- Final Technical Report Robert C. Voigt (2004) 946 Charpy impact test results on five materials and NIST verification specimens using instrumented 2-mm and ...

  10. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... spinal cord, brain stem, both parotids) was performed using predicted and planned dose distributions under 2%2 mm tolerance and physical gamma passing rate was calculated. ...

  11. Beamline 9.3.1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1 Print Atomic, molecular, and materials science Endstations: X-ray absorption endstation Polarized-x-ray emission spectrometer GENERAL BEAMLINE INFORMATION Operational Yes. Not open to general users (03-2015) Source characteristics Bend magnet Energy range 2.3-5.2 KeV Monochromator Double Si(111) crystal Measured flux (1.9 GeV, 300 mA) 1011 photons/s Resolving power (E/ΔE) 3000-7200 Beam size Adjustable with 2nd mirror Focused: 1.0 mm x 0.7 mm (~0.5 mm square at 2800 eV) Unfocused: 10 mm x 10

  12. Beamline 9.3.1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1 Print Atomic, molecular, and materials science Endstations: X-ray absorption endstation Polarized-x-ray emission spectrometer GENERAL BEAMLINE INFORMATION Operational Yes. Not open to general users (03-2015) Source characteristics Bend magnet Energy range 2.3-5.2 KeV Monochromator Double Si(111) crystal Measured flux (1.9 GeV, 300 mA) 1011 photons/s Resolving power (E/ΔE) 3000-7200 Beam size Adjustable with 2nd mirror Focused: 1.0 mm x 0.7 mm (~0.5 mm square at 2800 eV) Unfocused: 10 mm x 10

  13. Beamline 9.3.1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1 Print Atomic, molecular, and materials science Endstations: X-ray absorption endstation Polarized-x-ray emission spectrometer GENERAL BEAMLINE INFORMATION Operational Yes. Not open to general users (03-2015) Source characteristics Bend magnet Energy range 2.3-5.2 KeV Monochromator Double Si(111) crystal Measured flux (1.9 GeV, 300 mA) 1011 photons/s Resolving power (E/ΔE) 3000-7200 Beam size Adjustable with 2nd mirror Focused: 1.0 mm x 0.7 mm (~0.5 mm square at 2800 eV) Unfocused: 10 mm x 10

  14. Beamline 9.3.1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1 Print Atomic, molecular, and materials science Endstations: X-ray absorption endstation Polarized-x-ray emission spectrometer GENERAL BEAMLINE INFORMATION Operational Yes. Not open to general users (03-2015) Source characteristics Bend magnet Energy range 2.3-5.2 KeV Monochromator Double Si(111) crystal Measured flux (1.9 GeV, 300 mA) 1011 photons/s Resolving power (E/ΔE) 3000-7200 Beam size Adjustable with 2nd mirror Focused: 1.0 mm x 0.7 mm (~0.5 mm square at 2800 eV) Unfocused: 10 mm x 10

  15. Anion Exchange Membranes for Fuel Cells

    Office of Environmental Management (EM)

    ... tools not yet applied to AEMs * Morphology - Stress-Strain (mm) - SAXS (nm - m) - Nano-Indentation (>10s nm) - Microscopy ( - nm) - Nuetron scattering (nm - m) * ...

  16. Microfluidic interconnects (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    (HPLC) tubing to 1 mm diameter holes in silicon or glass, enabling ml-sized volumes of ... hplc; tubing; diameter; holes; silicon; glass; enabling; ml-sized; volumes; ...

  17. Microsoft Word - DOE-ID-INL-15-038.docx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    distances Shooting the FN240 machine gun Shooting .50 Barrett Shooting from ... Training with the full automatic machine gun (7.62 NATO) Training with the 40mm ...

  18. Los alamos national laboratory | National Nuclear Security Administrat...

    National Nuclear Security Administration (NNSA)

    NNSA research makes scientific impact, literally Inside the 40-mm Impact Test Facility, a heavily instrumented gun - 40 millimeters in diameter - employs compressed helium or ...

  19. CURRENT STATUS OF INSERTION DEVICE DEVELOPMENT AT THE NSLS-II AND ITS FUTURE PLANS

    SciTech Connect (OSTI)

    Tanabe, T.; Chubar, O.; Corwin, T.; Harder, D.A.; He, P.; Kitegi, C.; Rank, J.; Rhein, C.; Rakowsky, G.; Spataro, C.

    2011-03-28

    National Synchrotron Light Source-II (NSLS-II) project is currently under construction. Procurement of various insertion devices (IDs) has begun. This ring assumes a very high beam stability requirement which imposes tighter field specifications on insertion devices (IDs) compared to the rings of previous generation. The state of the art ID Magnetic Measurement Facility is being set up in order to be able to certify the stringent requirements on the magnetic field of NSLS-II IDs. The IDs in the project baseline scope include six 3.5m long damping wigglers (DWs) with 100mm period length and 15mm pole gap, two 2.0m Elliptically Polarizing Undulator (EPU) with 49mm period and 11.5mm minimum magnetic gap, two 3.0m long 20mm period and one 1.5m long 21mm period IVU, which the minimum gap of these is 5mm and 5.5mm, respectively. Recently a special device for inelastic X-ray scattering (IXS) beamline has been added to the collection of baseline devices. Three pole wigglers with a 28mm magnetic gap and a peak field over 1 Tesla will be utilized to accommodate the users of the type of radiation which is currently produced with bending magnets at the NSLS.

  20. Section 105

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Technology Laboratory (ETL) is developing a series of unattended 8-mm wavelength Doppler cloud profiling radars for the Atmospheric Radiation Measurement (ARM) Program...

  1. Poster Sessions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Radiation Studies with a High-Resolution Mesoscale Model J. Dudhia Mesoscale and ... Research (NCAR) Mesoscale Model (MM5) is upgraded to include a radiation package. ...

  2. Beamline 3.3.2

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ft optical table Calculated spot size at sample Up to 30 x 10 mm Sample format Mount off optical table Sample environment Ambient, air Scientific disciplines Applied science...

  3. Nevada | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Nevada NNSA research makes scientific impact, literally Inside the 40-mm Impact Test Facility, a heavily instrumented gun - 40 millimeters in diameter - employs compressed helium ...

  4. Solubilities of Toluene, Benzene and TCE in High-Biomass Systems

    SciTech Connect (OSTI)

    Barton, John W.; Vodraska, Christopher D; Flanary, Sandie A.; Davison, Brian H

    2008-01-01

    We report measurements of solubility limits for benzene, toluene, and TCE in systems that contain varying levels of biomass up to 0.13 g/mL. The solubility limit increased from 20 to 48 mM when biomass (in the form of yeast) was added to aqueous batch systems containing benzene. The toluene solubility limit increased from 4.9 to greater than 20 mM. For TCE, the solubility increased from 8 mM to more than 1000 mM. Solubility for TCE was most heavily impacted by biomass levels, changing by two orders of magnitude.

  5. Davidson County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    in Davidson County, Tennessee Agri Energy Inc Nashville Electric Service NES Universal Lighting Technologies Energy Generation Facilities in Davidson County, Tennessee MM...

  6. Air Gaps, Size Effect, and Corner-Turning in Ambient LX-17

    SciTech Connect (OSTI)

    Souers, P C; Hernandez, A; Cabacungan, C; Fried, L; Garza, R; Glaesemann, K; Lauderbach, L; Liao, S; Vitello, P

    2008-02-05

    Various ambient measurements are presented for LX-17. The size (diameter) effect has been measured with copper and Lucite confinement, where the failure radii are 4.0 and 6.5 mm, respectively. The air well corner-turn has been measured with an LX-07 booster, and the dead-zone results are comparable to the previous TATB-boosted work. Four double cylinders have been fired, and dead zones appear in all cases. The steel-backed samples are faster than the Lucite-backed samples by 0.6 {micro}s. Bare LX-07 and LX-17 of 12.7 mm-radius were fired with air gaps. Long acceptor regions were used to truly determine if detonation occurred or not. The LX-07 crossed at 10 mm with a slight time delay. Steady state LX-17 crossed at 3.5 mm gap but failed to cross at 4.0 mm. LX-17 with a 12.7 mm run after the booster crossed a 1.5 mm gap but failed to cross 2.5 mm. Timing delays were measured where the detonation crossed the gaps. The Tarantula model is introduced as embedded in 0 reactive flow JWL++ and Linked Cheetah V4, mostly at 4 zones/mm. Tarantula has four pressure regions: off, initiation, failure and detonation. The physical basis of the input parameters is considered.

  7. DOE/FEMP Welcome and Announcements

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Tetra Tech Inc.OR Natl. Guard Wells Fargo Insurance USA Connecticut General Assembly M&M Cartage TES Engineering Westminster Canterbury *Cox Enterprises Inc. *Marine Corps Base ...

  8. pone.0109935 1..10

    Office of Scientific and Technical Information (OSTI)

    ... or replaced with 50 mM sodium chloride. Bioelectrochemical Analysis Reactors were customized ... are acetogens or methanogens that can consume it fast enough 43. ...

  9. Lawrie Skinner

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mike Gagliano, Dave Feng, Yejun Skinner, Lawrie Stoica, Vladimir Fang, Yizhi Sun, Fei Weber, Rick Argonne Home Advanced Photon Source MM-Group Home MMG Advisory...

  10. Historical Information H.2 Biological Studies

    Office of Legacy Management (LM)

    ... Vice President MM&B Inc. Natural Gas Consultants Boulder, Colorado Leo K . Bustad Director, Radiobiology Laboratory School of Veterinary Medicine University of California Davis, ...

  11. Microsoft PowerPoint - Tritium Gas Stream Scrubbing using In...

    Office of Environmental Management (EM)

    ... Equipment Solid State Sintered Pellets * Mix elemental powders * Compact in 13 mm die * Sinter in Argon * Characterize Bronze Pellets Before and After Zinc Bottom Top First ...

  12. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... Boyce, James R. ; Cowan, Ray Franklin ; Douglas, David R. ; Evtushenko, Pavel ; Fisher, ... FEL facility through a set of small apertures in a 127 mm long aluminum block. ...

  13. Cleanroom Equipment

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Spectrophotometer Nikon MM-22U Measuroscope Nikon OPTIPHOT-88 Optical Microscope OXFORD Plasmalab System 400 Magnetron Sputtering System OXFORD RIEECR 100 System Oxford...

  14. Borrow Area MAP Annual Report 2015.pdf

    Office of Environmental Management (EM)

    Agency Bureau Primary Activity Code Secondary Activity Code Additional Activity Code Description of Activity Competed Type of Competition Location (State) # of FTE in study # of Bids Received Start Date (MM/DD/YYYY) End Date (MM/DD/YYYY) Expected Phase-In Completion Date (MM/DD/YYYY) Actual Phase-In Completion Date (MM/DD/YYYY) Source Selection Strategy Used Winning Provider FY 2005 Costs Total Cost - All Years Estimated Savings Period of Est. Savings (Performance Period--in years) Annualized

  15. DOE-HDBK-3010-94; Airborne Release Fractions/Rates and Respirable...

    National Nuclear Security Administration (NNSA)

    ... RF for plutonium under fast reactor processing conditions. ... wire encased in 2-mm sodium metal tubing were placed ... be generated in nuclear reactors or other more severe ...

  16. Myanmar: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Country Profile Name Myanmar Population Unavailable GDP Unavailable Energy Consumption Quadrillion Btu 2-letter ISO code MM 3-letter ISO code MMR Numeric ISO code...

  17. Settling of loose-fill insulations due to vibration

    SciTech Connect (OSTI)

    Yarbrough, D.W.; McElroy, D.L.; Wright, J.W.

    1981-12-01

    Vibration and impact testing of loose-fill cellulosic, fiberglass, and rock wool insulations has been carried out to provide a data base for settled density tests. The ratio of final density to initial density for the three materials has been determined for repeated 19-mm (0.75-in.) drops, repeated 152-mm (6.0-in.) drops, and vibrations at frequencies from 10 to 60 Hz with displacements from 0.1 mm (0.004 in.) to 6.35 mm (0.25 in.). Repeated 19-mm or 152-mm drops increased the density ratio for rock wool insulation specimens the most, while the cellulosic insulation specimens were affected the least. Density ratios after 200 19-mm drops averaged 1.75 for loose-fill rock wool, 1.45 for loose-fill fiberglass, and 1.27 for loose-fill cellulosic insulations. Vibration tests for 7200 s at 0.1-mm displacement and 15 Hertz produced negligible changes in the densities of all three loose-fill insulations. An 1800-s vibration test at 2.5 mm (0.1 in.) and 10 Hz resulted in average density ratios of 1.05, 1.11, and 1.18 for specimens of loose-fill cellulosic, rock wool, and fiberglass insulations, respectively. Changes in either frequency of vibration, displacement, or test duration can be used to achieve a wide range of laboratory results. Efforts to correlate laboratory results with in situ density measurements are presented.

  18. Settling of loose-fill insulations due to vibration

    SciTech Connect (OSTI)

    Yarbrough, D.W.; Wright, J.H.; McElroy, D.L.; Scanlan, T.F.

    1983-01-01

    Vibration and impact testing of loose-fill cellulosic, fiberglass, and rock wool insulations has been carried out to provide a data base for settled density tests. The ratio of final density to initial density for the three materials has been determined for repeated 19-mm (0.75-in.) drops, repeated 152-mm (6.0-in.) drops, and vibrations at frequencies from 10 to 60 Hz with displacements from 0.1 mm (0.004 in.) to 6.35 mm (0.25 in.). Repeated 19-mm or 152-mm drops increased the density ratio for rock wool insulation specimens the most, while the cellulosic insulation specimens were affected the least. Density ratios after 200 19-mm drops averaged 1.75 for loose-fill rock wool, 1.45 for loose-fill fiberglass, and 1.27 for loose-fill cellulosic insulations. Vibration tests for 7200 s at 0.1-mm displacement and 15 Hertz produced negligible changes in the densities of all three loose-fill insulations. An 1800-s vibration test at 2.5 mm (0.1 in.) and 10 Hz resulted in average density ratios of 1.05, 1.11, and 1.18 for specimens of loose-fill cellulosic, rock wool, and fiberglass insulations, respectively. Changes in either frequency of vibration, displacement, or test duration can be used to achieve a wide range of laboratory results. Efforts to correlate laboratory results with in situ density measurements are presented.

  19. Water scarcity and development in the Tigris-Euphrates river basin. Master`s thesis

    SciTech Connect (OSTI)

    1995-08-01

    This report will examine aspects of water scarcity and development, and discuss solutions available to avoid conflict over water in the Tigris-Euphrates River Basin. (MM).

  20. Microfluidic interconnects (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    high pressure liquid chromatography (HPLC) tubing to 1 mm diameter holes in silicon ... pressure; liquid; chromatography; hplc; tubing; diameter; holes; silicon; glass; ...

  1. Beamline 9.3.1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1 Print Atomic, molecular, and materials science Endstations: X-ray absorption endstation Polarized-x-ray emission spectrometer GENERAL BEAMLINE INFORMATION Operational Yes. Not open to general users (03-2015) Source characteristics Bend magnet Energy range 2.3-5.2 KeV Monochromator Double Si(111) crystal Measured flux (1.9 GeV, 300 mA) 1011 photons/s Resolving power (E/ΔE) 3000-7200 Beam size Adjustable with 2nd mirror Focused: 1.0 mm x 0.7 mm (~0.5 mm square at 2800 eV) Unfocused: 10 mm x 10

  2. Beamline 9.3.1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1 Print Atomic, molecular, and materials science Endstations: X-ray absorption endstation Polarized-x-ray emission spectrometer GENERAL BEAMLINE INFORMATION Operational Yes. Not open to general users (03-2015) Source characteristics Bend magnet Energy range 2.3-5.2 KeV Monochromator Double Si(111) crystal Measured flux (1.9 GeV, 300 mA) 1011 photons/s Resolving power (E/ΔE) 3000-7200 Beam size Adjustable with 2nd mirror Focused: 1.0 mm x 0.7 mm (~0.5 mm square at 2800 eV) Unfocused: 10 mm x 10

  3. Comment permalink | OSTI, US Dept of Energy Office of Scientific...

    Office of Scientific and Technical Information (OSTI)

    (Westinghouse Savannah River Co., Aiken, SC (United States)) (1992) 48 Charpy impact test results on five materials and NIST verification specimens using instrumented 2-mm and ...

  4. EDGE

    Energy Science and Technology Software Center (OSTI)

    002099IBMPC00 MM-Estimator and Adjusted Super Smoother based Simultaneous Prediction Confedenc http://nature.berkeley.edu/vulpelab/loguinov/

  5. Temescal BJD-1800 E-Beam Deposition system

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The main components of the system include a stainless steel high vacuum chamber with substrate holder designed to hold four 100mm diameter substrates, a pumping system consisting ...

  6. Dried plum diet protects from bone loss caused by ionizing radiation

    Office of Scientific and Technical Information (OSTI)

    ... 3-phosphate dehydro- genase (Gapdh, assay ID: Mm99999915g1). tte reactions were ... A. Space Radiation Risks for Astronauts on Multiple International Space Station Missions. ...

  7. Tritium Handling and Safe Storage

    Broader source: Energy.gov (indexed) [DOE]

    ... Individual mm Millimeter mrem Millirem NFPA National Fire Protection Association NP ... Handling of Tritium, published in 1991; and U.S. Department of Energy (DOE) publications. ...

  8. Tritium Handling and Safe Storage

    Broader source: Energy.gov (indexed) [DOE]

    ... Level mm Millimeter mrem Millirem NFPA National Fire Protection Association NMMSS ... Safe Handling of Tritium, published in 1991, in addition to the French Nuclear Safety ...

  9. Tritium Handling and Safe Storage

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Individual mm Millimeters mrem Millirem NFPA National Fire Protection Association NPDWR ... "Safe Handling of Tritium," published in 1991; and U.S. Department of Energy (DOE) ...

  10. I United States Government Printing Office SUPERINTENDENT OF...

    Office of Legacy Management (LM)

    ... (NI COLUHBIA R COAL EXPORT ASTORIA ... BrOOd.000 13?500000 AQUATIC PLANT CONTROL (1965 ... 82-D-109. 155mm artillery fired atomic projectile ...

  11. United States

    Office of Legacy Management (LM)

    ... (HI COLUMIIA R COAL EXFORT ASTORIA ... 82-D-109. 155mm artillery fired atomic projectile ... at the Sa- vannah River Plant, Aiken, South Carolina, ...

  12. United States

    Office of Legacy Management (LM)

    ... iN1 COUllBIh R COAL EXPORT ... AQUAiIC PLANT CONTROL (1965 ACT),,....,.,.,;.,... . ... 82-D-109. 155mm artillery fired atomic projectile ...

  13. SU-E-J-13: Six Degree of Freedom Image Fusion Accuracy for Cranial Target Localization On the Varian Edge Stereotactic Radiosurgery System: Comparison Between 2D/3D and KV CBCT Image Registration

    SciTech Connect (OSTI)

    Xu, H; Song, K; Chetty, I; Kim, J; Wen, N

    2015-06-15

    Purpose: To determine the 6 degree of freedom systematic deviations between 2D/3D and CBCT image registration with various imaging setups and fusion algorithms on the Varian Edge Linac. Methods: An anthropomorphic head phantom with radio opaque targets embedded was scanned with CT slice thicknesses of 0.8, 1, 2, and 3mm. The 6 DOF systematic errors were assessed by comparing 2D/3D (kV/MV with CT) with 3D/3D (CBCT with CT) image registrations with different offset positions, similarity measures, image filters, and CBCT slice thicknesses (1 and 2 mm). The 2D/3D registration accuracy of 51 fractions for 26 cranial SRS patients was also evaluated by analyzing 2D/3D pre-treatment verification taken after 3D/3D image registrations. Results: The systematic deviations of 2D/3D image registration using kV- kV, MV-kV and MV-MV image pairs were within ±0.3mm and ±0.3° for translations and rotations with 95% confidence interval (CI) for a reference CT with 0.8 mm slice thickness. No significant difference (P>0.05) on target localization was observed between 0.8mm, 1mm, and 2mm CT slice thicknesses with CBCT slice thicknesses of 1mm and 2mm. With 3mm CT slice thickness, both 2D/3D and 3D/3D registrations performed less accurately in longitudinal direction than thinner CT slice thickness (0.60±0.12mm and 0.63±0.07mm off, respectively). Using content filter and using similarity measure of pattern intensity instead of mutual information, improved the 2D/3D registration accuracy significantly (P=0.02 and P=0.01, respectively). For the patient study, means and standard deviations of residual errors were 0.09±0.32mm, −0.22±0.51mm and −0.07±0.32mm in VRT, LNG and LAT directions, respectively, and 0.12°±0.46°, −0.12°±0.39° and 0.06°±0.28° in RTN, PITCH, and ROLL directions, respectively. 95% CI of translational and rotational deviations were comparable to those in phantom study. Conclusion: 2D/3D image registration provided on the Varian Edge radiosurgery, 6 DOF

  14. ARM - VAP Product - aipfitrh1ogren

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    value of BbsBDry1umNeph3W1 in data selected for fRH fit 1Mm BbsBDry1ummax ( time ) Minimum value of BbsBDry1umNeph3W1 in data selected for fRH fit 1Mm...

  15. Lightweight photovoltaic module development for unmanned aerial vehicles

    SciTech Connect (OSTI)

    Nowlan, M.J.; Maglitta, J.C.; Lamp, T.R.

    1998-07-01

    Lightweight photovoltaic modules are being developed for powering high altitude unmanned aerial vehicles (UAVs). Terrestrial crystalline silicon solar cell and module technologies are being applied to minimize module cost, with modifications to improve module specific power (W/kg) and power density (W/m{sup 2}). New module processes are being developed for assembling standard thickness (320 mm) and thin (125 mm) solar cells, thin (50 to 100 mm) encapsulant films, and thin (25 mm) cover films. In comparison, typical terrestrial modules use 300 to 400 mm thick solar cells, 460 mm thick encapsulants, and 3.2 mm thick glass covers. The use of thin, lightweight materials allows the fabrication of modules with specific powers ranging from 120 to 200 W/kg, depending on cell thickness and efficiency, compared to 15 W/kg or less for conventional terrestrial modules. High efficiency designs based on ultra-thin (5 mm) GaAs cells have also been developed, with the potential for achieving substantially higher specific powers. Initial design, development, and module assembly work is completed. Prototype modules were fabricated in sizes up to 45 cm x 99 cm. Module materials and processes are being evaluated through accelerated environmental testing, including thermal cycling, humidity-freeze cycling, mechanical cycling, and exposure to UV and visible light.

  16. Fast Steering Mirror systems for the U-AVLIS program at LLNL

    SciTech Connect (OSTI)

    Watson, J.; Avicola, K.; Payne, A.; Peterson, R.L.; Ward, R.

    1994-07-01

    We have successfully deployed several fast steering mirror systems in the Uranium Atomic Vapor Isotope Separation (U-AVLIS) facility at LLNL. These systems employ 2 mm to 150 mm optics and piezoelectric actuators to achieve microradian pointing accuracy with disturbance rejection bandwidths to a few hundred hertz.

  17. Production of Advanced Biofuels via Liquefaction - Hydrothermal Liquefaction Reactor Design: April 5, 2013

    SciTech Connect (OSTI)

    Knorr, D.; Lukas, J.; Schoen, P.

    2013-11-01

    This report provides detailed reactor designs and capital costs, and operating cost estimates for the hydrothermal liquefaction reactor system, used for biomass-to-biofuels conversion, under development at Pacific Northwest National Laboratory. Five cases were developed and the costs associated with all cases ranged from $22 MM/year - $47 MM/year.

  18. Microsoft PowerPoint - schumacher-frederick.ppt [Compatibility...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ( 10 2.5 km H 0 Latent Latent Heating Total latent heating profiles for 10 mm d -1 of rain g C-POL domain and TWP-ICE rainfall mm d -1 * Area average rainfall for 19 Jan - 11 Feb...

  19. Design and performance of a large area neutron sensitive anger camera

    SciTech Connect (OSTI)

    Visscher, Theodore; Montcalm, Christopher A.; Donahue, Jr., Cornelius; Riedel, Richard A.

    2015-05-21

    We describe the design and performance of a 157mm x 157mm two dimensional neutron detector. The detector uses the Anger principle to determine the position of neutrons. We have verified FWHM resolution of < 1.2mm with distortion < 0.5mm on over 50 installed Anger Cameras. The performance of the detector is limited by the light yield of the scintillator, and it is estimated that the resolution of the current detector could be doubled with a brighter scintillator. Data collected from small (<1mm3) single crystal reference samples at the single crystal instrument TOPAZ provide results with low Rw(F) values

  20. Toward accurate tooth segmentation from computed tomography images using a hybrid level set model

    SciTech Connect (OSTI)

    Gan, Yangzhou; Zhao, Qunfei; Xia, Zeyang E-mail: jing.xiong@siat.ac.cn; Hu, Ying; Xiong, Jing E-mail: jing.xiong@siat.ac.cn; Zhang, Jianwei

    2015-01-15

    Purpose: A three-dimensional (3D) model of the teeth provides important information for orthodontic diagnosis and treatment planning. Tooth segmentation is an essential step in generating the 3D digital model from computed tomography (CT) images. The aim of this study is to develop an accurate and efficient tooth segmentation method from CT images. Methods: The 3D dental CT volumetric images are segmented slice by slice in a two-dimensional (2D) transverse plane. The 2D segmentation is composed of a manual initialization step and an automatic slice by slice segmentation step. In the manual initialization step, the user manually picks a starting slice and selects a seed point for each tooth in this slice. In the automatic slice segmentation step, a developed hybrid level set model is applied to segment tooth contours from each slice. Tooth contour propagation strategy is employed to initialize the level set function automatically. Cone beam CT (CBCT) images of two subjects were used to tune the parameters. Images of 16 additional subjects were used to validate the performance of the method. Volume overlap metrics and surface distance metrics were adopted to assess the segmentation accuracy quantitatively. The volume overlap metrics were volume difference (VD, mm{sup 3}) and Dice similarity coefficient (DSC, %). The surface distance metrics were average symmetric surface distance (ASSD, mm), RMS (root mean square) symmetric surface distance (RMSSSD, mm), and maximum symmetric surface distance (MSSD, mm). Computation time was recorded to assess the efficiency. The performance of the proposed method has been compared with two state-of-the-art methods. Results: For the tested CBCT images, the VD, DSC, ASSD, RMSSSD, and MSSD for the incisor were 38.16 ± 12.94 mm{sup 3}, 88.82 ± 2.14%, 0.29 ± 0.03 mm, 0.32 ± 0.08 mm, and 1.25 ± 0.58 mm, respectively; the VD, DSC, ASSD, RMSSSD, and MSSD for the canine were 49.12 ± 9.33 mm{sup 3}, 91.57 ± 0.82%, 0.27 ± 0.02 mm, 0

  1. Evaluation of the Planning Target Volume in the Treatment of Head and Neck Cancer With Intensity-Modulated Radiotherapy: What Is the Appropriate Expansion Margin in the Setting of Daily Image Guidance?

    SciTech Connect (OSTI)

    Chen, Allen M.; Farwell, D. Gregory; Luu, Quang; Donald, Paul J.; Perks, Julian; Purdy, James A.

    2011-11-15

    Purpose: To compare patterns of disease failure among patients treated with intensity-modulated radiotherapy (IMRT) in conjunction with daily image-guided radiotherapy (IGRT) for head and neck cancer, according to the margins used to expand the clinical target volume (CTV) to create a planning target volume (PTV). Methods and Materials: Two-hundred and twenty-five patients were treated with IMRT for squamous cell carcinoma of the head and neck. Daily IGRT scans were acquired using either kilovoltage or megavoltage volumetric imaging prior to each delivered fraction. The first 95 patients were treated with IMRT with 5-mm CTV-to-PTV margins. The subsequent 130 patients were treated using 3-mm PTV expansion margins. Results: Two-year estimates of overall survival, local-regional control, and distant metastasis-free survival were 76%, 78%, and 81%, respectively. There were no differences with respect to any of these endpoints among patients treated with 5-mm and 3-mm PTV expansion margins (p > 0.05, all). The 2-year local-regional control rate for patients treated with IMRT with 5-mm and 3-mm PTV margins was 78% and 78%, respectively (p = 0.96). Spatial evaluation revealed no differences in the incidences of marginal failures among those treated with 5-mm and 3-mm PTV margins. Conclusions: The use of 3-mm PTV expansion margins appears adequate and did not increase local-regional failures among patients treated with IMRT for head and neck cancer. These data demonstrate the safety of PTV reduction of less than 5 mm and support current protocols recommending this approach in the setting of daily IGRT.

  2. Quality Assurance of Multifractionated Pelvic Interstitial Brachytherapy for Postoperative Recurrences of Cervical Cancers: A Prospective Study

    SciTech Connect (OSTI)

    Shukla, Pragya; Chopra, Supriya; Engineer, Reena; Mahantshetty, Umesh; Paul, Siji Nojin; Phurailatpam, Reena; SV, Jamema; Shrivastava, Shyam K.

    2012-03-15

    Purpose: To evaluate three-dimensional needle displacements during multifractionated interstitial brachytherapy (BT) for cervical cancers. Methods and Materials: Patients scheduled to undergo pelvic interstitial BT for postoperative and or postradiation vault recurrences were included from November 2009 to December 2010. All procedures were performed under spinal anesthesia. Postprocedure BT planning CT scans were obtained with patients in supine position with arms on the chest (interslice thickness of 3 mm). Thereafter, verification CT was repeated at every alternate fraction. Needle displacements were measured in reference to a relocatable bony point. The mean cranial, caudal, anteroposterior, and mediolateral displacements were recorded. Statistical significance of mean interfraction displacements was evaluated with Wilcoxon Test. Results: Twenty patients were included. Seventeen received boost BT (20 Gy/5 fractions/3 days) after external radiation, three received radical BT alone (36 Gy/9 fractions/5-8 days). An average of three scans (range, 2-3) were available per patient, and 357 needle displacements were analyzed. For the entire study cohort, the average of mean needle displacement was 2.5 mm (range, 0-7.4), 17.4 mm (range, 0-27.9), 1.7 mm (range, 0-6.7), 2.1 mm (range, 0-9.5), 1.7 mm (range, 0-9.3), and 0.6 mm (range, 0-7.8) in cranial, caudal, anterior, posterior, right, and left directions, respectively. The mean displacement in the caudal direction was higher between Days 1 and 2 than that between Days 2 and 3 (13.4 mm vs. 3.8 mm; p = 0.01). The average caudal displacements were no different between reirradiation and boost cohort (15.2 vs. 17.8 mm). Conclusions: Clinically significant caudal displacements occur during multifractionated pelvic brachytherapy. Optimal margins need to be incorporated while preplanning brachytherapy to account for interfraction displacements.

  3. Symptomatic Outcomes in Relation to Tumor Expansion After Fractionated Stereotactic Radiation Therapy for Vestibular Schwannomas: Single-Institutional Long-Term Experience

    SciTech Connect (OSTI)

    Aoyama, Hidefumi; Department of Radiology, Division of Radiation Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata ; Onodera, Shunsuke; Takeichi, Norihito; Onimaru, Rikiya; Terasaka, Shunsuke; Sawamura, Yutaka; Shirato, Hiroki

    2013-02-01

    Purpose: The effect of transient tumor expansion after conventionally fractionated stereotactic radiation therapy (SRT) on the symptomatic outcomes is not well-known. Methods and Materials: This study enrolled 201 consecutive patients who received SRT for vestibular schwannoma. A conventional fractionation schedule was applied in 194 patients (97%), and 142 (71%) received a total dose of 50 Gy. The median follow-up time was 72 months. Results: The maximum diameter was 9 mm or less in 13 patients, 10-19 mm in 79 patients, 20-29 mm in 87 patients, and 30 mm or greater in 22 patients. At presentation, tumor size of 20 mm or greater was significantly associated with loss of serviceable hearing and trigeminal neuropathy. After SRT, tumor expansion was observed in 42 patients (21%). By tumor size, tumor expansion was observed in 0%, 11.4%, 25.6%, and 50% of patients with tumors of 9 mm or less, 10-19 mm, 20-29 mm, and 30 mm or greater, respectively, in diameter. The tumor expansion was significantly associated with an increased risk of hydrocephalus requiring shunt placement (P=.004), loss of serviceable hearing (P=.0064), and worsening of facial (P<.0001) and trigeminal nerve (P<.0001) functions. Spontaneous tumor shrinkage was observed in 29 of those 42 patients, mostly within 2 years after the expansion, and the majority of the worsened symptoms except for hearing resolved once the tumor had shrunk. As a result, salvage surgical resection for symptomatic relief was required in only 5% of patients. Conclusions: Fractionated SRT could be safely applied even for medium- to large-sized ({>=}20 mm) tumors. However, greater knowledge of the risks and consequences, including transient symptomatic worsening, and the time span of expansion will be required for the follow-up of patients after SRT to avoid unnecessary surgical intervention.

  4. PSMB4 promotes multiple myeloma cell growth by activating NF-κB-miR-21 signaling

    SciTech Connect (OSTI)

    Zheng, Peihao; Guo, Honggang; Li, Guangchao; Han, Siqi; Luo, Fei; Liu, Yi

    2015-03-06

    Proteasomal subunit PSMB4, was recently identified as potential cancer driver genes in several tumors. However, the regulatory mechanism of PSMB4 on carcinogenesis process remains unclear. In this study, we investigated the expression and roles of PSMB4 in multiple myeloma (MM). We found a significant up-regulation of PSMB4 in MM plasma and cell lines. Ectopic overexpression of PSMB4 promoted cell growth and colony forming ability of MM cells, whereas inhibition of PSMB4 led to a decrease of such events. Furthermore, our results demonstrated the up-regulation of miR-21 and a positive correlation between the levels of miR-21 and PSMB4 in MM. Re-expression of miR-21 markedly rescued PSMB4 knockdown-mediated suppression of cell proliferation and clone-formation. Additionally, while enforced expression of PSMB4 profoundly increased NF-κB activity and the level of miR-21, PSMB4 knockdown or NF-κB inhibition suppressed miR-21 expression in MM cells. Taken together, our results demonstrated that PSMB4 regulated MM cell growth in part by activating NF-κB-miR-21 signaling, which may represent promising targets for novel specific therapies. - Highlights: • First reported upregulation of PSMB4 in MM plasma and cell lines. • PSMB4 promoted MM cell growth and colony forming ability. • Further found miR-21 was up-regulated by PSMB4 in MM plasma and cell lines. • PSMB4-induced miR-21 expression was modulated by NF-κB. • PSMB4-NF-κB-miR-21 axis may be potential therapeutic targets of MM.

  5. SU-E-J-229: Magnetic Resonance Imaging of Small Fiducial Markers for Proton Beam Therapy

    SciTech Connect (OSTI)

    Hu, Y; James, J; Panda, A; Vargas, C; Silva, A; Liu, W; Shen, J; Ding, X; Paden, R; Hanson, J; Wong, W; Schild, S; Bues, M

    2015-06-15

    Purpose: For proton beam therapy, small fiducial markers are preferred for patient alignment due to less interference with the proton beam. Visualizing small fiducial markers can be challenging in MRI. This study intends to investigate MRI imaging protocols for better visualization of small fiducial markers. Methods: Two carbon and two coil-shaped gold markers were placed into a gel phantom. Both carbon markers had a diameter of 1mm and a length of 3mm. Both gold markers had a length of 5mm. One gold marker had a diameter of 0.5mm and the other had a diameter of 0.75mm. T1 VIBE, T2 SPACE, TrueFISP and susceptibility weighted (SW) images were acquired. To improve marker contrast, high spatial resolution was used to reduce partial volume effect. Slice thickness was 1.5mm for all four sequences and in-plane resolution was 0.6mm for TrueFISP, 0.7mm for T1 VIBE, and 0.8mm for T2 SPACE and SW. For comparison purpose, a 3D T1 VIBE image set at 3mm slice thickness and 1.2mm in-plane resolution was also acquired. Results: All markers were visible in all high-resolution image sets. In each image set, marker-induced signal void was the smallest (in diameter) for carbon markers, followed by the 0.5mm gold marker and the largest for the 0.75mm gold marker. The SW images had the largest marker-induced signal void. However, those might be confused by susceptibility-gradient-induced signal voids. T1 VIBE had good visualization of markers with nicely defined edges. T2 SPACE had reasonable visualization of markers but edges were slightly blurred. TrueFISP had good visualization of markers only if they were not masked by banding artifacts. As a comparison, all markers were hardly visible in the standard resolution T1 VIBE images. Conclusion: 3D high-resolution T1 VIBE and SW have great potential in providing good visualization of small fiducial markers for proton beam therapy.

  6. Achievement of high coercivity in sintered R-Fe-B magnets based on misch-metal by dual alloy method

    SciTech Connect (OSTI)

    Niu, E Wang, Zhen-Xi; Chen, Zhi-An; Rao, Xiao-Lei; Hu, Bo-Ping; Chen, Guo-An; Zhao, Yu-Gang; Zhang, Jin

    2014-03-21

    The R-Fe-B (R, rare earth) sintered magnets prepared with different ratio of alloys of MM-Fe-B (MM, misch-metal) and Nd-Fe-B by dual alloy method were investigated. As expected, the high ratio of MM-Fe-B alloy degrades the hard magnetic properties heavily with intrinsic coercivity lower than 5 kOe. When the atomic ratio MM/R???21.5% the magnetic properties can reach a practical level of B{sub r}???12.1 kGs, H{sub cj}???10.7 kOe, and (BH){sub max}???34.0 MGOe. And the effect of H{sub cj} enhancement by the grain boundary diffusion process is obvious when MM/R???21.5%. It is revealed that the decrement of intrinsic magnetic properties of R{sub 2}Fe{sub 14}B matrix phase is not the main reason of the degradation of the magnets with high MM ratio. The change of deteriorated microstructure together with phase component plays fundamental roles in low H{sub cj}. In high MM ratio magnets, (a) after annealing, Ce atoms inside main phase are inclined to be segregated in the outer layer of the main phase grains; (b) there is no thin layer of Ce-rich phase as an analogue of Nd-rich phase to separate main phase grains; (c) excessive Ce tends to form CeFe{sub 2} grains.

  7. Shock Desensitization Effect in the STANAG 4363 Confined Explosive Component Water Gap Test

    SciTech Connect (OSTI)

    Lefrancois, A S; Lee, R S; Tarver, C M

    2006-06-07

    The Explosive Component Water Gap Test (ECWGT) in the Stanag 4363 has been recently investigated to assess the shock sensitivity of lead and booster components having a diameter less than 5 mm. For that purpose, Pentaerythritol Tetranitrate (PETN) based pellets having a height and diameter of 3 mm have been confined by a steel annulus of wall thickness 1-3.5 mm and with the same height as the pellet. 1-mm wall thickness makes the component more sensitive (larger gap). As the wall thickness is increased to 2-mm, the gap increases a lesser amount, but when the wall thickness is increased to 3.5-mm a decrease in sensitivity is observed (smaller gap). This decrease of the water gap has been reproduced experimentally by many nations. Numerical simulations using Ignition and Growth model have been performed in this paper and have reproduced the experimental results for the steel confinement up to 2 mm thick and aluminum confinement. A stronger re-shock following the first input shock from the water is focusing on the axis due to the confinement. The double shock configuration is well-known to lead in some cases to shock desensitization.

  8. Roll Casting of Al-25%Si

    SciTech Connect (OSTI)

    Haga, Toshio [Osaka Institute of Technology, Omiya Asahiku Osaka city 535-8585 (Japan); Harada, Hideto [Graduate School of Osaka Institute of Technology, Omiya Asahiku Osaka city 535-8585 (Japan); Watari, Hisaki [Gunma University, Kiryu city, 376-8515 (Japan)

    2011-05-04

    Strip casting of Al-25%Si strip was tried using an unequal diameter twin roll caster. The diameter of the lower roll (large roll) was 1000 mm and the diameter of the upper roll (small roll) was 250 mm. Roll material was mild steel. The sound strip could be cast at the speeds ranging from 8 m/min to 12 m/min. The strip did not stick to the roll without the parting material. The primary Si, which existed at centre area of the thickness direction, was larger than that which existed at other area. The size of the primary Si was smaller than 0.2 mm. Eutectic Si was smaller 5 {mu}m. The as-cast strip was ranging from 2 mm to 3 mm thick and its width was 100 mm. The as-cast strip could be hot rolled down to 1 mm. The hot rolled strip was cold rolled. The primary Si became smaller and the pore occurred around the primary Si after the rolling.

  9. Measurement of high energy x-ray beam penumbra with Gafchromic trade mark sign EBT radiochromic film

    SciTech Connect (OSTI)

    Cheung Tsang; Butson, Martin J.; Yu, Peter K. N.

    2006-08-15

    High energy x-ray beam penumbra are measured using Gafchromic trade mark sign EBT film. Gafchromic trade mark sign EBT, due to its limited energy dependence and high spatial resolution provide a high level of accuracy for dose assessment in penumbral regions. The spatial resolution of film detector systems is normally limited by the scanning resolution of the densitometer. Penumbral widths (80%/20%) measured at D{sub max} were found to be 2.8, 3.0, 3.2, and 3.4 mm ({+-}0.2 mm) using 5, 10, 20, and 30 cm square field sizes, respectively, for a 6 MV linear accelerator produced x-ray beam. This is compared to 3.2 mm{+-}0.2 mm (Kodak EDR2) and 3.6 mm{+-}0.2 mm (Kodak X-Omat V) at 10 cmx10 cm measured using radiographic film. Using a zero volume extrapolation technique for ionization chamber measurements, the 10 cmx10 cm field penumbra at D{sub max} was measured to be 3.1 mm, a close match to Gafchromic trade mark sign EBT results. Penumbral measurements can also be made at other depths, including the surface, as the film does not suffer significantly from dosimetric variations caused by changing x-ray energy spectra. Gafchromic trade mark sign EBT film provides an adequate measure of penumbral dose for high energy x-ray beams.

  10. Production Target Design Report

    SciTech Connect (OSTI)

    Woloshun, Keith Albert; Dale, Gregory E.; Olivas, Eric Richard

    2015-07-28

    The Northstar 99Mo production target, a cylindrical length of 100Mo rod, has evolved considerably since its first conception.  The cylinder was very early sliced into disks to increase the heat transfer area, first to 1 mm thick disks then to the current 0.5 mm thick.  The coolant was changed early in the target development from water to helium to eliminate corrosion and dissolution.  The diameter has increased from initially 6 mm to 12 mm, the current diameter of the test target now at ANL, to nominally 28 mm (26-30.6 mm, depending upon optimal beam spot size and shape).  The length has also changed to improve the production to cost ratio, so now the target is nominally 41 mm long (excluding coolant gaps between disks), and irradiated on both ends.  This report summarizes the current status of the plant target design.

  11. SU-E-J-62: Breath Hold for Left-Sided Breast Cancer: Visually Monitored Deep Inspiration Breath Hold Amplitude Evaluated Using Real-Time Position Management

    SciTech Connect (OSTI)

    Conroy, L; Quirk, S; Smith, WL; Yeung, R; Phan, T; Hudson, A

    2015-06-15

    Purpose: We used Real-Time Position Management (RPM) to evaluate breath hold amplitude and variability when gating with a visually monitored deep inspiration breath hold technique (VM-DIBH) with retrospective cine image chest wall position verification. Methods: Ten patients with left-sided breast cancer were treated using VM-DIBH. Respiratory motion was passively collected once weekly using RPM with the marker block positioned at the xiphoid process. Cine images on the tangent medial field were acquired on fractions with RPM monitoring for retrospective verification of chest wall position during breath hold. The amplitude and duration of all breath holds on which treatment beams were delivered were extracted from the RPM traces. Breath hold position coverage was evaluated for symmetric RPM gating windows from ± 1 to 5 mm centered on the average breath hold amplitude of the first measured fraction as a baseline. Results: The average (range) breath hold amplitude and duration was 18 mm (3–36 mm) and 19 s (7–34 s). The average (range) of amplitude standard deviation per patient over all breath holds was 2.7 mm (1.2–5.7 mm). With the largest allowable RPM gating window (± 5 mm), 4 of 10 VM-DIBH patients would have had ≥ 10% of their breath hold positions excluded by RPM. Cine verification of the chest wall position during the medial tangent field showed that the chest wall was greater than 5 mm from the baseline in only 1 out of 4 excluded patients. Cine images verify the chest wall/breast position only, whether this variation is acceptable in terms of heart sparing is a subject of future investigation. Conclusion: VM-DIBH allows for greater breath hold amplitude variability than using a 5 mm gating window with RPM, while maintaining chest wall positioning accuracy within 5 mm for the majority of patients.

  12. SU-E-J-140: Availability of Using Diaphragm Matching in Stereotactic Body Radiotherapy (SBRT) at the Time in Breath-Holding SBRT for Liver Cancer

    SciTech Connect (OSTI)

    Kawahara, D; Tsuda, S.; Ozawa, S; Ohno, Y.; Kimura, T.; Nagata, Y.; Nakashima, T.; Aita, M.; Ochi, Y.; Okumura, T.; Masuda, H.

    2014-06-01

    Purpose: IGRT based on the bone matching may produce a larger target positioning error in terms of the reproducibility of the expiration breath hold. Therefore, the feasibility of the 3D image matching between planning CT image and pretreatment CBCT image based on the diaphragm matching was investigated. Methods: In fifteen-nine liver SBRT cases, Lipiodol, uptake after TACE was outlined as the marker of the tumor. The relative coordinate of the isocenter obtained by the contrast matching was defined as the reference coordinate. The target positioning difference between diaphragm matching and bone matching were evaluated by the relative coordinate of the isocenter from the reference coordinate obtained by each matching technique. In addition, we evaluated PTV margins by van Herk setup margin formula. Results: The target positioning error by the diaphragm matching and the bone matching was 1.310.83 and 3.102.80 mm in the cranial-caudal(C-C) direction, 1.040.95 and 1.621.02 mm in the anterior-posterior(A-P) direction, 0.931.19 and 1.120.94 mm in the left-right(L-R) direction, respectively. The positioning error by the diaphragm matching was significantly smaller than the bone matching in the C-C direction (p<0.05). The setup margin of diaphragm matching and bone matching that we had calculated based on van Herk margin formula was 4.5mm and 6.2mm(C-C), and 3.6mm and 6.3mm(A-P), and 2.6mm and 4.5mm(L-R), respectively. Conclusion: IGRT based on a diaphragm matching could be one alternative image matching technique for the positioning of the patients with liver tumor.

  13. SU-E-P-25: Evaluation of Motion in Pancreas SBRT Treatment Deliveries

    SciTech Connect (OSTI)

    Xiong, L; Halvorsen, P

    2015-06-15

    Purpose: Stereotactic Body Radiation Therapy (SBRT) procedures for pancreatic cancer present a challenge in motion management because the target is directly adjacent to critical structures and the target is subject to significant respiratory motion. Gated treatment is usually planned with a tight (few mm) PTV margin. The positioning and setup relies on on-board-imaging (OBI) of internal fiducials. This study evaluates the corrections for inter- and intra-fractional target motion as evidenced by the OBI. Methods: 20 patients with gated pancreas SBRT treatment were setup with KV imaging guidance before and during each treatment. The couch position was fine-tuned to align with the internal fiducials for each patient. The data for 148 intra- and 111 inter-fractional couch movements were captured and analyzed. Results: The mean ± standard deviation of couch shifts for the initial daily setup is 4.9±4.1 mm for couch vertical, 5.3±4.6 mm for couch longitudinal, and 3.7±4.0 mm for couch lateral. The mean ± standard deviation of intra-treatment adjustments are 1.1±1.6, 2.5±3.8, and 1.1±1.8 mm for couch vertical, longitudinal and lateral. The probability of intra-fractional motion in the three orthogonal directions with magnitude no more than 2 mm, 3 mm and 5 mm is 55%, 68% and 84% respectively. Conclusion: The intra-treatment target motion for pancreas SBRT patients indicates that a PTV margin of 5mm may be necessary.

  14. Feasibility of Electromagnetic Transponder Use to Monitor Inter- and Intrafractional Motion in Locally Advanced Pancreatic Cancer Patients

    SciTech Connect (OSTI)

    Shinohara, Eric T.; Kassaee, Alireza; Mitra, Nandita; Vapiwala, Neha; Plastaras, John P.; Drebin, Jeff; Wan, Fei; Metz, James M.

    2012-06-01

    Purpose: The primary objective of this study was to determine the feasibility of electromagnetic transponder implantation in patients with locally advanced unresectable pancreatic cancer. Secondarily, the use of transponders to monitor inter- and intrafractional motion, and the efficacy of breath holding for limiting target motion, were examined. Methods and Materials: During routine screening laparoscopy, 5 patients without metastatic disease were implanted with transponders peri-tumorally. The Calypso System's localization and tracking modes were used to monitor inter- and intrafractional motion, respectively. Intrafractional motion, with and without breath holding, was also examined using Calypso tracking mode. Results: Transponder implantation was well tolerated in all patients, with minimal migration, aside from 1 patient who expulsed a single transponder. Interfractional motion based on mean shifts from setup using tattoos/orthogonal imaging to transponder based localization from 164 treatments was significant in all dimensions. Mean shift (in millimeters), followed by the standard deviation and p value, were as follows: X-axis: 4.5 mm (1.0, p = 0.01); Y axis: 6.4 mm (1.9, p = 0.03); and Z-axis 3.9 mm (0.6, p = 0.002). Mean intrafractional motion was also found to be significant in all directions: superior, 7.2 mm (0.9, p = 0.01); inferior, 11.9 mm (0.9, p < 0.01); anterior: 4.9 mm (0.5, p = 0.01); posterior, 2.9 mm (0.5, p = 0.02); left, 2.2 mm (0.4, p = 0.02); and right, 3.1 mm (0.6, p = 0.04). Breath holding during treatment significantly decreased tumor motion in all directions. Conclusions: Electromagnetic transponder implantation appears to be safe and effective for monitoring inter- and intrafractional motion. Based on these results a larger clinical trial is underway.

  15. Air Gaps, Size Effect, and Corner-Turning in Ambient LX-17

    SciTech Connect (OSTI)

    Souers, P C; Hernandez, A; Cabacungen, C; Fried, L; Garza, R; Glaesemann, K; Lauderbach, L; Liao, S; Vitello, P

    2007-05-30

    Various ambient measurements are presented for LX-17. The size (diameter) effect has been measured with copper and Lucite confinement, where the failure radii are 4.0 and 6.5 mm, respectively. The air well corner-turn has been measured with an LX-07 booster, and the dead-zone results are comparable to the previous TATB-boosted work. Four double cylinders have been fired, and dead zones appear in all cases. The steel-backed samples are faster than the Lucite-backed samples by 0.6 {micro}s. Bare LX-07 and LX-17 of 12.7 mm-radius were fired with air gaps. Long acceptor regions were used to truly determine if detonation occurred or not. The LX-07 crossed at 10 mm with a slight time delay. Steady state LX-17 crossed at 3.5 mm gap but failed to cross at 4.0 mm. LX-17 with a 12.7 mm run after the booster crossed a 1.5 mm gap but failed to cross 2.5 mm. Timing delays were measured where the detonation crossed the gaps. The Tarantula model is introduced as embedded in the Linked Cheetah V4.0 reactive flow code at 4 zones/mm. Tarantula has four pressure regions: off, initiation, failure and detonation. A report card of 25 tests run with the same settings on LX-17 is shown, possibly the most extensive simultaneous calibration yet tried with an explosive. The physical basis of some of the input parameters is considered.

  16. Microscale mass spectrometry systems, devices and related methods

    DOE Patents [OSTI]

    Ramsey, John Michael

    2016-06-21

    Mass spectrometry systems or assemblies therefore include an ionizer that includes at least one planar conductor, a mass analyzer with a planar electrode assembly, and a detector comprising at least one planar conductor. The ionizer, the mass analyzer and the detector are attached together in a compact stack assembly. The stack assembly has a perimeter that bounds an area that is between about 0.01 mm.sup.2 to about 25 cm.sup.2 and the stack assembly has a thickness that is between about 0.1 mm to about 25 mm.

  17. Multi-System Verification of Registrations for Image-Guided Radiotherapy in Clinical Trials

    SciTech Connect (OSTI)

    Cui Yunfeng; Galvin, James M.; Straube, William L.; Bosch, Walter R.; Purdy, James A.; Li, X. Allen; Xiao Ying

    2011-09-01

    Purpose: To provide quantitative information on the image registration differences from multiple systems for image-guided radiotherapy (IGRT) credentialing and margin reduction in clinical trials. Methods and Materials: Images and IGRT shift results from three different treatment systems (Tomotherapy Hi-Art, Elekta Synergy, Varian Trilogy) have been sent from various institutions to the Image-Guided Therapy QA Center (ITC) for evaluation for the Radiation Therapy Oncology Group (RTOG) trials. Nine patient datasets (five head-and-neck and four prostate) were included in the comparison, with each patient having 1-4 daily individual IGRT studies. In all cases, daily shifts were re-calculated by re-registration of the planning CT with the daily IGRT data using three independent software systems (MIMvista, FocalSim, VelocityAI). Automatic fusion was used in all calculations. The results were compared with those submitted from institutions. Similar regions of interest (ROIs) and same initial positions were used in registrations for inter-system comparison. Different slice spacings for CBCT sampling and different ROIs for registration were used in some cases to observe the variation of registration due to these factors. Results: For the 54 comparisons with head-and-neck datasets, the absolute values of differences of the registration results between different systems were 2.6 {+-} 2.1 mm (mean {+-} SD; range 0.1-8.6 mm, left-right [LR]), 1.7 {+-} 1.3 mm (0.0-4.9 mm, superior-inferior [SI]), and 1.8 {+-} 1.1 mm (0.1-4.0 mm, anterior-posterior [AP]). For the 66 comparisons in prostate cases, the differences were 1.1 {+-} 1.0 mm (0.0-4.6 mm, LR), 2.1 {+-} 1.7 mm (0.0-6.6 mm, SI), and 2.0 {+-} 1.8 mm (0.1-6.9 mm, AP). The differences caused by the slice spacing variation were relatively small, and the different ROI selections in FocalSim and MIMvista also had limited impact. Conclusion: The extent of differences was reported when different systems were used for image

  18. SU-E-J-38: Improved DRR Image Quality Using Polyetheretherketone (PEEK) Fiducial in Image Guided Radiotherapy (IGRT)

    SciTech Connect (OSTI)

    Shen, S; Jacob, R; Popple, R; Duan, J; Wu, X; Cardan, R; Brezovich, I

    2015-06-15

    Purpose Fiducial-based imaging is often used in IGRT. Traditional gold fiducial marker often has substantial reconstruction artifacts. These artifacts Result in poor image quality of DRR for online kV-to-DRR matching. This study evaluated the image quality of PEEK in DRR in static and moving phantom. Methods CT scan of the Gold and PEEK fiducial (both 1×3 mm) was acquired in a 22 cm cylindrical phantom filled with water. Image artifacts was evaluated with maximum CT value deviated from water due to artifacts; volume of artifacts in 10×10 cm in the center slice; maximum length of streak artifacts from the fiducial. DRR resolution were measured using FWHM and FWTM. 4DCT of PEEK fiducial was acquired with the phantom moving sinusoidally in superior-inferior direction. Motion artifacts were assessed for various 4D phase angles. Results The maximum CT value deviation was −174 for Gold and −24 for PEEK. The volume of artifacts in a 10x10 cm 3 mm slice was 0.369 for Gold and 0.074 cm3 for PEEK. The maximum length of streak artifact was 80mm for Gold and 7 mm for PEEK. PEEK in DRR, FWHM was close to actual (1.0 mm for Gold and 1.1 mm for PEEK). FWTM was 1.8 mm for Gold and 1.3 mm for PEEK in DRR. Barrel motion artifact of PEEK fiducial was noticeable for free-breathing scan. The apparent PEEK length due to residual motion was in close agreement with the calculated length (13 mm for 30–70 phase, 10 mm in 40–60 phase). Conclusion Streak artifacts on planning CT associated with use of gold fiducial can be significantly reduced by PEEK fiducial, while having adequate kV image contrast. DRR image resolution at FWTM was improved from 1.8 mm to 1.3 mm. Because of this improvement, we have been routinely use PEEK for liver IGRT.

  19. Magnetic shield of high-T sub c Bi-Pb-Sr-Ca-Cu-O superconductors at 77 K for SQUID measurements

    SciTech Connect (OSTI)

    Hoshino, K.; Sudoh, E.; Katoh, K.; Yamazaki, S.; Takayama, H.; Takahara, H. ); Ohta, H.; Aono, M. )

    1991-03-01

    This paper reports on the development of a relatively large high-Tc Bi-Pb-Sr-Ca-Cu-O superconducting magnetic shield vessel of 150 mm in inner diameter, 320 mm in depth and 10 mm in thickness, which is applicable to biomagnetic measurements with a SQUID. Magnetic fields inside the vessel were measured by using an RF SQUID magnetometer or measuring induced voltages in a pickup coil. The shielding factors, defined as the ratio of the magnetic field at 290 K to that at 77 K, were around 10{sup 5}-10{sup 6}.

  20. Observations on Characterization of Defects in Coiled Tubing From Magnetic-Flux-Leakage Data

    SciTech Connect (OSTI)

    Timothy R. McJunkin; Karen S. Miller; Charles R. Tolle

    2006-04-01

    This paper presents observations on the sizing of automatically detected artificial flaws in coiled tubing samples using magnetic-flux-leakage data. Sixty-six artificial flaws of various shapes and types, ranging from 0.30 mm deep pits to slots with length of 9.5 mm, in 44.45 mm outer diameter pipe were analyzed. The detection algorithm and the information automatically extracted from the data are described. Observations on the capabilities and limitations for determining the size and shape of the flaws are discussed.

  1. Characterisation of the muon beams for the Muon Ionisation Cooling Experiment

    SciTech Connect (OSTI)

    Adams, D.; et al.,

    2013-10-01

    A novel single-particle technique to measure emittance has been developed and used to characterise seventeen different muon beams for the Muon Ionisation Cooling Experiment (MICE). The muon beams, whose mean momenta vary from 171 to 281 MeV/c, have emittances of approximately 1.5--2.3 \\pi mm-rad horizontally and 0.6--1.0 \\pi mm-rad vertically, a horizontal dispersion of 90--190 mm and momentum spreads of about 25 MeV/c. There is reasonable agreement between the measured parameters of the beams and the results of simulations. The beams are found to meet the requirements of MICE.

  2. Ground-Based and Airborne (PMS 2-D Probe Canister-Mounted) 183 GHz Water

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Vapor Radiometer Ground-Based and Airborne (PMS 2-D Probe Canister-Mounted) 183 GHz Water Vapor Radiometer Pazmany, Andrew ProSensing Inc. Category: Instruments ProSensing Inc. has developed a G-band (183 GHz, 1.5 mm wavelength) water vapor radiometer (GVR) for the measurement of low concentrations of atmospheric water vapor and liquid water. The instrument's precipitable water vapor measurement precision is approximately 0.01 mm in dry (<2 mm vapor column) conditions. The ground-based

  3. Advanced Millimeter-Wave Imaging Enhances Security Screening

    SciTech Connect (OSTI)

    Sheen, David M.; Bernacki, Bruce E.; McMakin, Douglas L.

    2012-01-12

    Millimeter-wave imaging is rapidly gaining acceptance for passenger screening at airports and other secured facilities. This paper details a number of techniques developed over the last several years including novel image reconstruction and display techniques, polarimetric imaging techniques, array switching schemes, as well as high frequency high bandwidth techniques. Implementation of some of these methods will increase the cost and complexity of the mm-wave security portal imaging systems. RF photonic methods may provide new solutions to the design and development of the sequentially switched linear mm-wave arrays that are the key element in the mm-wave portal imaging systems.

  4. Advanced Millimeter-Wave Security Portal Imaging Techniques

    SciTech Connect (OSTI)

    Sheen, David M.; Bernacki, Bruce E.; McMakin, Douglas L.

    2012-04-01

    Millimeter-wave imaging is rapidly gaining acceptance for passenger screening at airports and other secured facilities. This paper details a number of techniques developed over the last several years including novel image reconstruction and display techniques, polarimetric imaging techniques, array switching schemes, as well as high frequency high bandwidth techniques. Implementation of some of these methods will increase the cost and complexity of the mm-wave security portal imaging systems. RF photonic methods may provide new solutions to the design and development of the sequentially switched linear mm-wave arrays that are the key element in the mm-wave portal imaging systems.

  5. SU-E-T-428: Dosimetric Impact of Multileaf Collimator Leaf Width On Single and multiple Isocenter Stereotactic IMRT Treatment Plans for multiple Brain Tumors

    SciTech Connect (OSTI)

    Giem, J; Algan, O; Ahmad, S; Ali, I; Young, J; Hossain, S

    2014-06-01

    Purpose: To assess the impacts that multileaf collimator (MLC) leaf width has on the dose conformity and normal brain tissue doses of single and multiple isocenter stereotactic IMRT (SRT) plans for multiple intracranial tumors. Methods: Fourteen patients with 2–3 targets were studied retrospectively. Patients treated with multiple isocenter treatment plans using 9 to 12 non-coplanar beams per lesion underwent repeat planning using single isocenter and 10 to 12 non-coplanar beams with 2.5mm, 3mm and 5mm MLC leaf widths. Brainlab iPlan treatment planning system for delivery with the 2.5mm MLC served as reference. Identical contour sets and dose-volume constraints were applied. The prescribed dose to each target was 25 Gy to be delivered over 5 fractions with a minimum of 99% dose to cover ≥ 95% of the target volume. Results: The lesions and normal brains ranged in size from 0.11 to 51.67cc (median, 2.75cc) and 1090 to 1641cc (median, 1401cc), respectively. The Paddick conformity index for single and multiple isocenter (2.5mm vs. 3mm and 5mm MLCs) was (0.79±0.08 vs. 0.79±0.07 and 0.77±0.08) and (0.79±0.09 vs. 0.77±0.09 and 0.76±0.08), respectively. The average normal brain volumes receiving 15 Gy for single and multiple isocenter (2.5mm vs. 3mm and 5mm MLCs) were (3.65% vs. 3.95% and 4.09%) and (2.89% vs. 2.91% and 2.92%), respectively. Conclusion: The average dose conformity observed for the different leaf width for single and multiple isocenter plans were similar, throughout. However, the average normal brain volumes receiving 2.5 to 15 Gy were consistently lower for the 2.5mm MLC leaf width, especially for single isocenter plans. The clinical consequences of these integral normal brain tissue doses are still unknown, but employing the use of the 2.5mm MLC option is desirable at sparing normal brain tissue for both single and multiple isocenter cases.

  6. Alkaline Anion Exchange Membrane Fuel Cells (AEM-FC) Status

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Alkaline Anion Exchange Membrane Fuel Cells (AEM-FC) Status Dario R. Dekel Associate Professor Wolfson Department of Chemical Engineering Grand Technion Energy Program (GTEP) Technion - Israel Institute of Technology dario@technion.ac.il 2016 Alkaline Membrane Fuel Cell Workshop Sheraton Grand Phoenix Phoenix, AZ - April 1, 2016 Early days in AEM-FC 153mm 78mm 51mm 4mg/cm 2 PtRu, 4mg/cm 2 Pt black, RH=100%, H 2 / O 2  0.8V @80mA/cm 2 (130mW/cm 2 ) Dario R. Dekel Varcoe et al., Chem. Mater.

  7. Dosimetric characterization of a multileaf collimator for a new four-dimensional image-guided radiotherapy system with a gimbaled x-ray head, MHI-TM2000

    SciTech Connect (OSTI)

    Nakamura, Mitsuhiro; Sawada, Akira; Ishihara, Yoshitomo; Takayama, Kenji; Mizowaki, Takashi; Kaneko, Shuji; Yamashita, Mikiko; Tanabe, Hiroaki; Kokubo, Masaki; Hiraoka, Masahiro

    2010-09-15

    Purpose: To present the dosimetric characterization of a multileaf collimator (MLC) for a new four-dimensional image-guided radiotherapy system with a gimbaled x-ray head, MHI-TM2000. Methods: MHI-TM2000 has an x-ray head composed of an ultrasmall linear accelerator guide and a system-specific MLC. The x-ray head can rotate along the two orthogonal gimbals (pan and tilt rotations) up to {+-}2.5 deg., which swings the beam up to {+-}41.9 mm in each direction from the isocenter on the isocenter plane perpendicular to the beam. The MLC design is a single-focus type, has 30 pairs of 5 mm thick leaves at the isocenter, and produces a maximum field size of 150x150 mm{sup 2}. Leaf height and length are 110 and 260 mm, respectively. Each leaf end is circular, with a radius of curvature of 370 mm. The distance that each leaf passes over the isocenter is 77.5 mm. Radiation leakage between adjacent leaves is minimized by an interlocking tongue-and-groove (T and G) arrangement with the height of the groove part 55 mm. The dosimetric characterizations including field characteristics, leaf position accuracy, leakage, and T and G effect were evaluated using a well-commissioned 6 MV photon beam, EDR2 films (Kodak, Rochester, NY), and water-equivalent phantoms. Furthermore, the field characteristics and leaf position accuracy were evaluated under conditions of pan or tilt rotation. Results: The differences between nominal and measured field sizes were within {+-}0.5 mm. Although the penumbra widths were greater with wider field size, the maximum width was <5.5 mm even for the fully opened field. Compared to the results of field characteristics without pan or tilt rotation, the variation in field size, penumbra width, flatness, and symmetry was within {+-}1 mm/1% at the maximum pan or tilt rotational angle. The leaf position accuracy was 0.0{+-}0.1 mm, ranging from -0.3 to 0.2 mm at four gantry angles of 0 deg., 90 deg., 180 deg., and 270 deg. with and without pan or tilt rotation

  8. Infrared Images of Shock-Heated Tin

    SciTech Connect (OSTI)

    Craig W. McCluskey; Mark D. Wilke; William D. Turley; Gerald D. Stevens; Lynn R. Veeser; Michael Grover

    2004-09-01

    High-resolution, gated infrared images were taken of tin samples shock heated to just below the 505 K melting point. Sample surfaces were either polished or diamond-turned, with grain sizes ranging from about 0.05 to 10 mm. A high explosive in contact with a 2-mm-thick tin sample induced a peak sample stress of 18 GPa. Interferometer data from similarly-driven tin shots indicate that immediately after shock breakout the samples spall near the free (imaged) surface with a scab thickness of about 0.1 mm.

  9. Operation of a small-gap undulator on the NSLS X-ray Ring

    SciTech Connect (OSTI)

    Stefan, P.M.; Krinsky, S.; Rakowsky, G.; Solomon, L.

    1995-02-01

    The authors report results of an on-going experiment being carried out in the X13 straight section of the NSLS X-ray Ring which explores the limits of the operation of small-gap undulators. In particular, they discuss the operation of a 16 mm period small-gap undulator. At an electron beam current of 300 mA the variable gap vacuum chamber has been closed to an inner aperture of 3.8 mm with no effect on the electron beam lifetime. Measurements of the output radiation spectrum at a magnet gap of 7.5 mm are described.

  10. SU-E-J-48: Imaging Origin-Radiation Isocenter Coincidence for Linac-Based SRS with Novalis Tx

    SciTech Connect (OSTI)

    Geraghty, C; Workie, D; Hasson, B

    2015-06-15

    Purpose To implement and evaluate an image-based Winston-Lutz (WL) test to measure the displacement between ExacTrac imaging origin and radiation isocenter on a Novalis Tx system using RIT V6.2 software analysis tools. Displacement between imaging and radiation isocenters was tracked over time. The method was applied for cone-based and MLC-based WL tests. Methods The Brainlab Winston-Lutz phantom was aligned to room lasers. The ExacTrac imaging system was then used to detect the Winston- Lutz phantom and obtain the displacement between the center of the phantom and the imaging origin. EPID images of the phantom were obtained at various gantry and couch angles and analyzed with RIT calculating the phantom center to radiation isocenter displacement. The RIT and Exactrac displacements were combined to calculate the displacement between imaging origin and radiation isocenter. Results were tracked over time. Results Mean displacements between ExacTrac origin and radiation isocenter were: VRT: −0.1mm ± 0.3mm, LNG: 0.5mm ± 0.2mm, LAT: 0.2mm ± 0.2mm (vector magnitude of 0.7 ± 0.2mm). Radiation isocenter was characterized by the mean of the standard deviations of the WL phantom displacements: σVRT: 0.2mm, σLNG: 0.4mm, σLAT: 0.6mm. The linac couch base was serviced to reduce couch walkout. This reduced σLAT to 0.2mm. These measurements established a new baseline of radiation isocenter-imaging origin coincidence. Conclusion The image-based WL test has ensured submillimeter localization accuracy using the ExacTrac imaging system. Standard deviations of ExacTrac-radiation isocenter displacements indicate that average agreement within 0.3mm is possible in each axis. This WL test is a departure from the tradiational WL in that imaging origin/radiation isocenter agreement is the end goal not lasers/radiation isocenter.

  11. Microsoft Word - Cover Page - Exhibit 3

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    3 Northern Pass Project Diagrams of Cross-Section of Underground Cables Northern Pass Transmission Project Exhibit 3 - Technical Design of Cross Section Underground Cables (Sheet 1 of 2) HVDC Cable - 300 kV - 2000 mm² - Mass Impregnated Cable Component Thickness - mm Diameter - mm Conductor 50.1 Conductor screen 51.1 Insulation MI paper 14 79.1 Insulation screen 80.3 Lead sheath 3.0 86.3 Polyethylene sheath 2.8 91.9 Binder tape 92.7 Steel tape 93.9 Binder tape 95.5 Polyethylene sheath 4.3 104.1

  12. BEAMLINE 13-3

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    EXPERIMENTAL STATION 13-3 CURRENT STATUS Open RESPONSIBLE STAFF Bart Johnson EXPERIMENTS Soft X-ray Coherent Scattering: Resonant, Polarization-dependent; Lensless Imaging: X-ray Holography, MAD phasing; X-ray Photon Correlation Spectroscopy SCHEDULING Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules SOURCE EPU, Linear and Circular Polarization MONOCHROMATOR SGM, Rowland Circle Spherical Grating 300l/mm 600l/mm 1100l/mm Energy Range 150-400eV 350-750eV

  13. SU-E-I-25: Quantification of Coronary Artery Cross-Sectional Area in CT Angiography Using Integrated Density: A Simulation Study

    SciTech Connect (OSTI)

    Johnson, T; Ding, H; Lipinski, J; Molloi, S

    2015-06-15

    Purpose: To develop a physics-based model for accurate quantification of the cross-sectional area (CSA) of coronary arteries in CT angiography by measuring the integrated density to account for the partial volume effect. Methods: In this technique the integrated density of the object as compared with its local background is measured to account for the partial volume effect. Normal vessels were simulated as circles with diameters in the range of 0.1–3mm. Diseased vessels were simulated as 2, 3, and 4mm diameter vessels with 10–90% area stenosis, created by inserting circular plaques. A simplified two material model was used with the lumen as 8mg/ml Iodine and background as lipid. The contrast-to-noise ratio between lumen and background was approximately 26. Linear fits to the known CSA were calculated. The precision and accuracy of the measurement were quantified using the root-mean-square fit deviations (RMSD) and errors to the known CSA (RMSE). Results compared to manual segmentation of the vessel lumen. To assess the impact of random variations, coefficients of variation (CV) from 10 simulations for each vessel were computed to determine reliability. Measurements with CVs less than 10% were considered reliable. Results: For normal vessels, the precision and accuracy of the integrated density technique were 0.12mm{sup 2} and 0.28mm{sup 2}, respectively. The corresponding results for manual segmentation were 0.27mm{sup 2} and 0.43mm{sup 2}. For diseased vessels, the precision and accuracy of the integrated density technique were 0.14mm{sup 2} and 0.19mm{sup 2}. Corresponding results for manual segmentation were 0.42mm{sup 2} and 0.71mm{sup 2}. Reliable CSAs were obtained for normal vessels with diameters larger than 1 mm and for diseased vessels with area as low as 1.26mm2. Conclusion: The CSA based on integrated density showed improved precision and accuracy as compared with manual segmentation in simulation. These results indicate the potential of using

  14. SU-E-J-119: What Effect Have the Volume Defined in the Alignment Clipbox for Cervical Cancer Using Automatic Registration Methods for Cone- Beam CT Verification?

    SciTech Connect (OSTI)

    Wang, W; Yang, H; Wang, Y; Jia, H; Xie, Y

    2014-06-01

    Purpose: To investigate the impact of different clipbox volumes with automated registration techniques using commercially available software with on board volumetric imaging(OBI) for treatment verification in cervical cancer patients. Methods: Fifty cervical cancer patients received daily CBCT scans(on-board imaging v1.5 system, Varian Medical Systems) during the first treatment week and weekly thereafter were included this analysis. A total of 450 CBCT scans were registered to the planning CTscan using pelvic clipbox(clipbox-Pelvic) and around PTV clip box(clipbox- PTV). The translations(anterior-posterior, left-right, superior-inferior) and the rotations(yaw, pitch and roll) errors for each matches were recorded. The setup errors and the systematic and random errors for both of the clip-boxes were calculated. Paired Samples t test was used to analysis the differences between clipbox-Pelvic and clipbox-PTV. Results: . The SD of systematic error(?) was 1.0mm, 2.0mm,3.2mm and 1.9mm,2.3mm, 3.0mm in the AP, LR and SI directions for clipbox-Pelvic and clipbox-PTV, respectively. The average random error(?)was 1.7mm, 2.0mm,4.2mm and 1.7mm,3.4mm, 4.4mm in the AP, LR and SI directions for clipbox-Pelvic and clipbox-PTV, respectively. But, only the SI direction was acquired significantly differences between two image registration volumes(p=0.002,p=0.01 for mean and SD). For rotations, the yaw mean/SD and the pitch SD were acquired significantly differences between clipbox-Pelvic and clipbox-PTV. Conclusion: The defined volume for Image registration is important for cervical cancer when 3D/3D match was used. The alignment clipbox can effect the setup errors obtained. Further analysis is need to determine the optimal defined volume to use the image registration in cervical cancer. Conflict of interest: none.

  15. Characteristics and development report for the MC3573 thermal battery

    SciTech Connect (OSTI)

    Street, H.K.

    1983-02-01

    This report describes the design intent, product characteristics, and development history of the MC3573 high-current, electrically activated thermal battery. This battery is required to operate five to six times longer than the usual weapon system power battery. The MC3573 employs the Li(Si)/LiCl.KCl/FeS/sub 2/ electrochemical system. The battery is a right-circular cylinder with attached mounting brackets. It measures 122.1 mm in length, 88.9 mm in diameter, and stands 96.2 mm high. The battery is the power supply for the W81 and W85 JTA telemetry systems.

  16. DISCOVERY OF A CLOSE PAIR OF FAINT DWARF GALAXIES IN THE HALO OF CENTAURUS A

    SciTech Connect (OSTI)

    Crnojević, D.; Sand, D. J.; Caldwell, N.; McLeod, B.; Guhathakurta, P.; Toloba, E.; Simon, J. D.; Strader, J.

    2014-11-10

    As part of the Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS), we report the discovery of a pair of faint dwarf galaxies (CenA-MM-Dw1 and CenA-MM-Dw2) at a projected distance of ∼90 kpc from the nearby elliptical galaxy NGC 5128 (CenA). We measure a tip of the red giant branch distance to each dwarf, finding D = 3.63 ± 0.41 Mpc for CenA-MM-Dw1 and D = 3.60 ± 0.41 Mpc for CenA-MM-Dw2, both of which are consistent with the distance to NGC 5128. A qualitative analysis of the color-magnitude diagrams indicates stellar populations consisting of an old, metal-poor red giant branch (≳12 Gyr, [Fe/H] ∼ –1.7 to –1.9). In addition, CenA-MM-Dw1 seems to host an intermediate-age population as indicated by its candidate asymptotic giant branch stars. The derived luminosities (M{sub V} = –10.9 ± 0.3 for CenA-MM-Dw1 and –8.4 ± 0.6 for CenA-MM-Dw2) and half-light radii (r{sub h} = 1.4 ± 0.04 kpc for CenA-MM-Dw1 and 0.36 ± 0.08 kpc for CenA-MM-Dw2) are consistent with those of Local Group dwarfs. CenA-MM-Dw1's low central surface brightness (μ {sub V,} {sub 0} = 27.3 ± 0.1 mag arcsec{sup –2}) places it among the faintest and most extended M31 satellites. Most intriguingly, CenA-MM-Dw1 and CenA-MM-Dw2 have a projected separation of only 3 arcmin (∼3 kpc): we are possibly observing the first, faint satellite of a satellite in an external group of galaxies.

  17. Improvement of snowpack simulations in a regional climate model

    SciTech Connect (OSTI)

    Jin, J.; Miller, N.L.

    2011-01-10

    To improve simulations of regional-scale snow processes and related cold-season hydroclimate, the Community Land Model version 3 (CLM3), developed by the National Center for Atmospheric Research (NCAR), was coupled with the Pennsylvania State University/NCAR fifth-generation Mesoscale Model (MM5). CLM3 physically describes the mass and heat transfer within the snowpack using five snow layers that include liquid water and solid ice. The coupled MM5CLM3 model performance was evaluated for the snowmelt season in the Columbia River Basin in the Pacific Northwestern United States using gridded temperature and precipitation observations, along with station observations. The results from MM5CLM3 show a significant improvement in the SWE simulation, which has been underestimated in the original version of MM5 coupled with the Noah land-surface model. One important cause for the underestimated SWE in Noah is its unrealistic land-surface structure configuration where vegetation, snow and the topsoil layer are blended when snow is present. This study demonstrates the importance of the sheltering effects of the forest canopy on snow surface energy budgets, which is included in CLM3. Such effects are further seen in the simulations of surface air temperature and precipitation in regional weather and climate models such as MM5. In addition, the snow-season surface albedo overestimated by MM5Noah is now more accurately predicted by MM5CLM3 using a more realistic albedo algorithm that intensifies the solar radiation absorption on the land surface, reducing the strong near-surface cold bias in MM5Noah. The cold bias is further alleviated due to a slower snowmelt rate in MM5CLM3 during the early snowmelt stage, which is closer to observations than the comparable components of MM5Noah. In addition, the over-predicted precipitation in the Pacific Northwest as shown in MM5Noah is significantly decreased in MM5 CLM3 due to the lower evaporation resulting from the longer snow

  18. Plugless Level 2 EV Charging System (3.3 kW) by Evatran Group Inc.

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PLUGLESS TM Level 2 EV Charging System (3.3 kW) by Evatran Group Inc. Results from Full System Testing in a Laboratory environment Description / Specifications 1 System Input Voltage operating Voltage 208 to 240 VAC Circuit Breaker Rating 30 A Nominal gap between coils 100 mm Rated maximum power output 3300 watts Parking Pad (Primary Coil system) Shape Approximately Circular Size 559 dia. x 470 long mm Vehicle Adapter (Secondary Coil system) Shape Rectangular Size 464 long x 525 wide mm

  19. Growth of <001> TGCC crystals by Sankaranarayanan–Ramasamy (SR) method and its characterization

    SciTech Connect (OSTI)

    Boopathi, K.; Ramasamy, P.

    2015-06-24

    Single crystals of tris (glycine) Calcium (II) dichloride (TGCC) were successfully grown by Sankaranarayanan-Ramasamy (SR) method and conventional slow evaporation solution technique which have the sizes of 40 mm in length, 20 mm in diameter and 10×10×3 mm{sup 3} respectively. The grown TGCC crystals have been subjected to single crystal X-ray diffraction, UV-Vis NIR studies, Vickers micro hardness analysis, laser damage and SHG analysis. The transmittance of the grown crystal was analyzed by recording UV-Vis-NIR analysis. Mechanical strength of the SR method grown crystals was higher than the conventional method grown crystal.

  20. Accuracy of cranial coplanar beam therapy using an oblique, stereoscopic x-ray image guidance system

    SciTech Connect (OSTI)

    Vinci, Justin P.; Hogstrom, Kenneth R.; Neck, Daniel W.

    2008-08-15

    A system for measuring two-dimensional (2D) dose distributions in orthogonal anatomical planes in the cranium was developed and used to evaluate the accuracy of coplanar conformal therapy using ExacTrac image guidance. Dose distributions were measured in the axial, sagittal, and coronal planes using a CIRS (Computerized Imaging Reference Systems, Inc.) anthropomorphic head phantom with a custom internal film cassette. Sections of radiographic Kodak EDR2 film were cut, processed, and digitized using custom templates. Spatial and dosimetric accuracy and precision of the film system were assessed. BrainScan planned a coplanar-beam treatment to conformally irradiate a 2-cm-diameterx2-cm-long cylindrical planning target volume. Prior to delivery, phantom misalignments were imposed in combinations of {+-}8 mm offsets in each of the principal directions. ExacTrac x-ray correction was applied until the phantom was within an acceptance criteria of 1 mm/1 deg. (first two measurement sets) or 0.4 mm/0.4 deg. (last two measurement sets). Measured dose distributions from film were registered to the treatment plan dose calculations and compared. Alignment errors, displacement between midpoints of planned and measured 70% isodose contours ({delta}c), and positional errors of the 80% isodose line were evaluated using 49 2D film measurements (98 profiles). Comparison of common, but independent measurements of {delta}c showed that systematic errors in the measurement technique were 0.2 mm or less along all three anatomical axes and that random error averaged ({sigma}{+-}{sigma}{sub {sigma}}) 0.29{+-}0.06 mm for the acceptance criteria of 1 mm/1 deg. and 0.15{+-}0.02 mm for the acceptance criteria of 0.4 mm/0.4 deg. . The latter was consistent with independent estimates that showed the precision of the measurement system was 0.3 mm (2{sigma}). Values of {delta}c were as great as 0.9, 0.3, and 1.0 mm along the P-A, R-L, and I-S axes, respectively. Variations in {delta}c along the P

  1. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... uranium and gold ions from the SIS heavy-ion synchrotron at GSI were injected through several mm of diamond into solid samples pressurized up to 14 GPa in a diamond anvil cell. ...

  2. User' Software Manual

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MM-Group Home MMG Advisory Committees 4-ID-D Home Recent Publications Beamline Info Optics Instrumentation Software User Info FAQs 4-ID-D Beamline Software Manual Introduction...

  3. DOE/ER/40561- II- IN191-05-04 DOE/ER/40

    Office of Scientific and Technical Information (OSTI)

    M.M. Musakhanov Institute for Nuclear Theory, University of Washington HN-12, Seattle, ... MODEL M.M.MUSAKHANOV Institute for Nuclear Theory, University of Washington HN-I, ...

  4. Geoengineering: Plan B Remedy for Global Warming Andrew A. Lacis

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mass-specific cross-sections (m2g) at 550 nm and 10 mm for black carbon (BC), sulfuric acid (SA), aluminum (AL) aerosols (A), and mass-specific cooling for SA aerosol for mass ...

  5. Surface Quality of Ti-6%Al-4%V ELI When Machined Using CVD-Carbide Tools at High Cutting Speed

    SciTech Connect (OSTI)

    Gusri, A. I.; Che Hassan, C. H.; Jaharah, A. G.; Yasir, A.; Zaid, Y.; Yanuar, B.

    2011-01-17

    Machining of Ti-6Al-4V ELI becomes more interested topic due to extremely weight-to-strength ratio and resistance to corrosion at elevated temperature. Quality of machined surface is presented by surface roughness, surface texture and damages of microstructure of titanium alloys. The turning parameters evaluated are cutting speed of 55-95 m/min, feed rate of 0.15-0.35 mm/rev, depth of cut of 0.10-0.20 mm and tool grade of CVD carbide tools. The results show the trend lines of surface roughness value are higher at the initial machining and the surface texture profile has a strong correlation with the feed rate. At the machining condition of cutting speed of 95 m/min, feed rate of 0.35 mm/rev and depth of cut of 0.10 mm produced the with layer with thickness of 2.0 {mu}m.

  6. Design of an optical cell for pulse radiolysis of supercritical water

    SciTech Connect (OSTI)

    Takahashi, Kenji; Cline, Jason A.; Bartels, David M.; Jonah, Charles D.

    2000-09-01

    The design of a flow cell that is applicable to pulse radiolysis/transient absorption experiments on supercritical water is described. The cell is designed to minimize dead volume and prevent the accumulation of radiolytic products. It is also necessary to minimize emission and absorption of sapphire windows from high energy electron beam irradiation. To obtain an optical throughput of f/4, the inner diameter is 6 mm, and distance between windows is 25 mm. The effective optical path length is 20 mm for irradiation from the side through a thin Hastelloy wall. Belleville spring washers were used to keep a constant force on the 3 mm sapphire windows, which were sealed to the Hastelloy body with copper gaskets. An application of this cell to measurements of solvated electrons in supercritical water is demonstrated. (c) 2000 American Institute of Physics.

  7. Nuclear spectroscopy with Si PIN diode detectors at room temperature

    SciTech Connect (OSTI)

    Ahmad, I.; Betts, R.R.; Happ, T.; Henderson, D.J.; Wolfs, F.L.H.; Wuosmaa, A.H.

    1990-01-01

    The characteristics of PIN diodes have been determined. These diodes have lower leakage currents and noise than other types of Si radiation detectors. The energy resolutions (FWHM) of a 1 cm{sup 2} {times} 0.5 mm PIN diode measured with a pulser, 122.0 keV gamma rays, 193 keV electrons, and 5.5-MeV alpha particles were 2.6, 2.8, 2.9, and 11.0 keV, respectively. For a 6 mm {times} 6 mm {times} 0.2 mm PIN diode, the resolutions (FWHM) for a pulser, 60 keV {gamma}-rays, 193 keV electrons, and 5.5-MeV, {alpha}-particles were 2.1, 2.2, 2.4, and 10.8 keV, respectively. 11 refs., 5 figs., 1 tab.

  8. Installation and commissioning of a large area coating system for neutron and X-ray optical devices

    SciTech Connect (OSTI)

    Biswas, A. Haque, Sk. Maidul Misal, J. Sampathkumar, R.; Ajaykumar,; Bhattacharyya, D.; Sahoo, N. K.; Lagoo, K. D.; Veerapur, R. D.; Padmanabhan, M.; Puri, R. K.; Bhattacharya, Debarati

    2014-04-24

    A 9 meter long DC/RF sputtering cylindrical coating system which is designed and built indigenously for coating of neutron supermirrors and grazing incidence hard X-ray mirrors on large area substrates has been installed and commissioned recently. The performance of the system has been tested by depositing Ti films on glass substrate of 1500mm X 150mm size. By depositing Ti films on several small area c-Si substrates placed over the length and breadth of the substrate holder, and by subsequent characterization by GIXR measurement, it has been observed that films with bulk-like density and very low surface roughness can be obtained in the above system. The thickness uniformity achieved in the deposited films is within 3.5% over the 1500mm length and within 4.8% over the 150mm width.

  9. Millimeter size single crystals of superconducting YBa[sub 2]Cu[sub 3]O[sub x

    DOE Patents [OSTI]

    Damento, M.A.; Gschneidner, K.A. Jr.

    1989-04-25

    A method of growing large, up to 1 mm size single crystals of superconducting YBa[sub 2]Cu[sub 3]O[sub x], wherein x equals from 6.5 to 7.2 is disclosed.

  10. EERE PowerPoint 97-2004 Template: Green Version

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... with current tool) Tilt and strains are generally detectable (>1 nano radian, >1 nano strain) while vertical displacement is not (<1mm) 1 0.56 2(1 2 ) 1 (1 ) v v ...